WASHINGTON (AP) — The Latest on Congress’ tally of the Electoral College vote won by Joe Biden (all times Mountain time):

9:10 p.m.

Four people died as supporters of President Donald Trump violently occupied the U.S. Capitol.

Republican Sen. Josh Hawley says he is going forward with his objection to the Electoral College results in Pennsylvania despite the violent breach at the Capitol by supporters of President Donald Trump.

The Missouri senator said he did not support violence but said the Senate should go forward with a legal process that includes his objections.

Hawley says his objections should be debated “peacefully, without violence, without attacks, without bullets.” He says he hoped lawmakers would not brush his concerns aside because of the violence earlier Wednesday, including the death of a protester inside the Capitol.

Trump has claimed widespread voter fraud to explain away his defeat to President-elect Joe Biden, though election officials have said there wasn’t any.

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8:10 p.m.

Sen. Lindsey Graham says a commission to examine the 2020 election is not a proper next step and affirmed that Joe Biden is the “legitimate president of the United States.”

Graham, a South Carolina Republican and longtime ally of President Donald Trump, called it a “uniquely bad idea to delay this election,” referencing the commission idea proposed by his fellow South Carolina Republican, U.S. Sen. Tim Scott.

Graham says, “Count me out. Enough is enough.”

Earlier Wednesday, supporters of Trump breached the U.S. Capitol, forcing a lockdown of the lawmakers and staff inside. Trump has claimed widespread voter fraud to explain away his defeat to President-elect Joe Biden, though election officials have said there wasn’t any.

Graham said that “if you’re a conservative,” the idea that Vice President Mike Pence could reverse the results of the election, as President Donald Trump had urged him to do, was “the most offensive concept in the world.”

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7:45 p.m.

House Republican leader Kevin McCarthy is comparing violence at the U.S. Capitol to protests against racial injustice over the summer after the killing of George Floyd by police.

The U.S. Capitol was overrun by a mob supportive of President Donald Trump on Wednesday as Congress counted electoral votes to confirm President-elect Joe Biden’s win. Trump has falsely said there was widespread fraud in the election to explain his defeat and encouraged his supporters to come to Washington.

McCarthy said, “Mobs don’t rule America. Laws rule America. It was true when our cities were burning this summer and it is true now.”

The comment got loud applause from Republicans. Democrats in the chamber sat silently.

Floyd, a Black man who was handcuffed, was killed in May after a white police officer pressed his knee against Floyd’s neck for several minutes even after he said he couldn’t breathe.

McCarthy, an ally of Trump’s, said Wednesday was the “saddest day” he’s ever had in Congress.

He said: “It is clear this Congress will not be the same after today.”

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7:15 p.m.

House Speaker Nancy Pelosi says Congress’ certification of President-elect Joe Biden’s election win will show the world it won’t back down.

Pelosi made her comments as the House reconvened after being shut down for hours Wednesday by unruly pro-Trump protesters. She said that every four years the ritual provides an example to the world of American democracy.

Pelosi says, “Despite the shameful actions of today, we will still do so, we will be part of a history that shows the world what America is made of.”

Pelosi, a Roman Catholic, noted that Wednesday is the feast of the Epiphany and prayed that the violence would be “an epiphany to heal” for the country.

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7:10 pm.

New York Gov. Andrew Cuomo is sending 1,000 members of the state’s National Guard to Washington, D.C., to help “the peaceful transition of presidential power.”

Cuomo, a Democrat, said 1,000 troops would be sent for up to two weeks at the request of U.S. National Guard officials. It comes after a mob of President Donald Trump’s supporters rampaged through the U.S. Capitol.

Cuomo said in a statement Wednesday: “For 244 years, the cornerstone of our democracy has been the peaceful transfer of power, and New York stands ready to help ensure the will of the American people is carried out, safely and decisively.”

They will join law enforcement from Virginia, Maryland and New Jersey who are also coming to D.C.’s aid.

The president’s supporters incited chaos in a protest over a transfer of power to President-elect Joe Biden. Trump convinced them that he was cheated out of a victory by rampant, widespread voter fraud, a false claim.

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6:55 p.m.

Multiple Republican senators have reversed course and now say they won’t object to congressional certification of President-elect Joe Biden’s victory.

Their change of heart came after a violent mob stormed the U.S. Capitol earlier Wednesday and interrupted their proceedings. One person was fatally shot.

Sens. Steve Daines of Montana, Mike Braun of Indiana and Kelly Loeffler of Georgia all said in light of the violence they would stand down from planned objections to Biden’s win.

Lawmakers gathered to certify the Electoral College votes from each state were forced to evacuate after an angry mob of Trump supporters descended on the Capitol. Loeffler said that the “violence, the lawlessness, and siege of the halls of Congress” were a “direct attack” on the “sanctity of the American democratic process.”

All three had previously signed on to Trump’s false claims of widespread voter fraud to explain his defeat. Loeffler has just days left in her term. She lost her Senate race to Democrat Raphael Warnock earlier Wednesday.

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6:45 p.m.

Senate Majority Leader Mitch McConnell says Congress “will not be deterred” in confirming the results of the presidential election hours after supporters of President Donald Trump stormed the U.S. Capitol.

The Republican leader reopened the Senate late Wednesday vowing to finish confirming the Electoral College for President-elect Joe Biden. It was interrupted earlier in the way when rioters breached the security perimeter and clashed with law enforcement before disrupting Congress’ tallying of the Electoral College votes. One person was fatally shot.

McConnell says demonstrators “tried to disrupt our democracy. They failed.”

McConnell plans to keep the Senate in session Wednesday to finish confirming the results.

Trump has repeatedly told his supporters that the November election was stolen from him, even though that is not true. He reiterated the claim in a video filmed as his demonstrators were storming the Capitol.

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6:35 p.m.

Senate Democratic leader Chuck Schumer says President Donald Trump “bears a great deal of the blame” after a mob loyal to him stormed the U.S. Capitol.

As the Senate reconvened to count electoral votes that will confirm Democrat Joe Biden’s win, Schumer said that Jan. 6, 2021, will “live forever in infamy” and will be a stain on the democracy.

Schumer said the events “did not happen spontaneously.”

He said Wednesday: “The president, who promoted conspiracy theories that motivated these thugs, the president, who exhorted them to come to our nation’s capital, egged them on.”

Trump has falsely claimed that there was widespread fraud in the election to explain away his defeat.

Schumer says the protesters should be prosecuted to the fullest extent of the law.

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6:20 p.m.

Former President Barack Obama says history will rightly remember the violence at the Capitol as a moment of great dishonor and shame for the nation.

Angry supporters of President Donald Trump stormed the U.S. Capitol on Wednesday in a chaotic protest aimed at thwarting a peaceful transfer of power.

Obama say the violence was “incited by a sitting president” who baselessly lied about the outcome of the presidential election. He has convinced his supporters that he lost the election to President-elect Joe Biden only because Democrats cheated, a false claim.

Obama says it should not have come as a surprise, and that for two months “a political party and its accompanying media ecosystem has too often been unwilling to tell their followers the truth.”

He says “their fantasy narrative has spiraled further and further from reality, and it builds upon years of sown resentments. Now we’re seeing the consequences, whipped up into a violent crescendo.”

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6:10 p.m.

The Senate has resumed debating the Republican challenge against Democrat Joe Biden’s presidential election victory, more than six hours after pro-Trump mobs attacked the Capitol and forced lawmakers to flee.

Scores of Republican representatives and 13 GOP senators had planned to object Wednesday to the electoral votes of perhaps six states that backed Biden. It was unclear whether those objections would continue in light of the day’s violent events.

President Donald Trump has falsely insisted that the election was marred by fraud and that he actually won. He reiterated those claims in remarks to thousands of protesters outside the White House early Wednesday and goaded them to march to the Capitol, which many of them did.

The mayhem had forced the House and Senate to abruptly end the day’s debates and flee to safety under the protection of police. And it prompted bipartisan outrage as many lawmakers blamed Trump for fostering the violence.

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6:05 p.m.

Former Defense Secretary Jim Mattis, who resigned in protest over President Donald Trump’s Syria policies, blamed the president for the violence at the U.S. Capitol.

In a sharp rebuke Wednesday, Mattis said the violence was fomented by Trump, who has used the presidency “to destroy trust in our election and to poison our respect for fellow citizens.”

His written statement concluded, “Our Constitution and our Republic will overcome this stain and We the People will come together again in our never-ending effort to form a more perfect Union, while Mr. Trump will deservedly be left a man without a country.”

Mattis, a retired four-star Marine general who stepped down as Pentagon chief in December 2018, had an embattled relationship with Trump, but largely remained publicly quiet and avoided direct criticism. Since he left the job, however, he has been more openly derisive of Trump, including a pubilc condemnation of the president’s heavy-handed use of military force to quell protests near the White House last June.

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5:55 p.m.

Stephanie Grisham, chief of staff and press secretary for first lady Melania Trump, has resigned following violent protests at the U.S. Capitol by supporters of President Donald Trump.

Grisham says in a statement Wednesday that it was an “honor” to serve the country in the White House and be part of he first lady’s “mission” to help children.

Grisham was one of Trump’s longest serving aides, having joined the campaign in 2015. She served as the White House press secretary and never held a press briefing.

Wednesday’s violent occupation of the U.S. Capitol by the president’s supporters sparked renewed conversations inside the White House about mass resignations by mid-level aides who are responsible for operations of the office of the president.

Two people familiar with the conversations said the aides were torn between fears of what more would happen if they left and a desire to register their disgust with their boss. They spoke on condition of anonymity to discuss internal matters.

— AP writer Zeke Miller

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5:45 p.m.

The Republican National Committee says it strongly condemns the violence at the Capitol, adding that the violent scenes “do not represent acts of patriotism, but an attack on our country and its founding principles.”

The RNC is responsible for developing and promoting the Republican political platform. Its statement condemning the violence came hours after Republican President Donald Trump baselessly complained that the election was stripped away “from great patriots.” He went on to tell them to “go home with love & in peace.”

The group’s communications director, Michael Ahrens, says, “What happened today was domestic terrorism.”

He says to see the U.S. flag used “in the name of unfounded conspiracy theories is a disgrace to the nation, and every decent American should be disgusted by it.”

Trump had encouraged his supporters to come to Washington to fight Congress’ formal approval of President-elect Joe Biden’s victory over him, citing false claims of voter fraud. He held a rally earlier Wednesday and urged his supporters to march to the Capitol, telling them to “get rid of the weak Congress people.”

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5:40 p.m.

Former President Bill Clinton says the attack on the U.S. Capitol was fueled over four years of “poison politics” and lit by President Donald Trump.

Clinton said in a statement Wednesday night that the riot at the Capitol resulted from a combination of deliberate disinformation that created distrust in the system and pit Americans against one another.

He wrote, “The match was lit by Donald Trump and his most ardent enablers, including many in Congress, to overturn the results of an election he lost.”

His wife, Hillary Clinton, lost a bitter election to Trump in 2016 and conceded to him immediately. Trump has refused to accept his defeat by Democrat Joe Biden in November and is trying to cast him as an illegitimate president.

Trump had encouraged his supporters to come to Washington to fight Congress’ formal approval of Biden’s win. He held a rally earlier Wednesday and urged his supporters to march to the Capitol, telling them to “get rid of the weak Congress people” and saying, “get the weak ones get out; this is the time for strength.”

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5:20 p.m.

A West Virginia lawmaker took video of himself and other supporters of President Donald Trump rushing into the U.S. Capitol after they breached the security perimeter.

In the video by Republican Del. Derrick Evans, later deleted from his social media page, he is shown wearing a helmet and clamoring at the door to breach the building in Washington, D.C., on Wednesday.

“We’re in! Keep it moving, baby!” he said in a packed doorway amid Trump followers holding flags and complaining of being pepper sprayed. Once inside, Evans could be seen on video milling around the Capitol Rotunda, where historical paintings depict the republic’s founding, and yelled, “No vandalizing!”

State House of Delegates Speaker Roger Hanshaw said Evans will need to “answer to his constituents and colleagues regarding his involvement in what has occurred today.”

He said he has not spoken to Evans yet about his involvement.

The delegate from Wayne County said in a statement later on Facebook that he was heading back to West Virginia and “was simply there as an independent member of the media to film history.”

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4:55 p.m.

House Speaker Nancy Pelosi says Congress will resume the Electoral College proceedings once the Capitol is cleared of pro-Donald Trump protesters and safe for use.

Pelosi said she made the decision Wednesday in consultation with the Pentagon, the Justice Department and the vice president, who will preside.

She noted the day would always be “part of history,” but now it would be “as such a shameful picture of our country was put out into the world.”

Trump had encouraged his supporters to come to Washington to fight Congress’ formal approval of President-elect Joe Biden’s win. He held a rally earlier Wednesday and urged his supporters to march to the Capitol, telling them to “get rid of the weak Congress people” and saying, “get the weak ones get out; this is the time for strength.”

Trump supporters breached the Capitol building and clashed with law enforcement before disrupting Congress’ tallying of the Electoral College votes. Trump has repeatedly told his supporters that the November election was stolen from him, even though that is not true.

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4:45 p.m.

Dozens of pro-Trump protesters remain on the streets of the nation’s capital in defiance of the curfew imposed after rioters stormed the Capitol.

The mostly maskless crowd was forcibly removed from the Capitol on Wednesday after breaking into the building and halting the constitutional process of voting to certify President-elect Joe Biden’s win. They were pushed out of the immediate area and moved down the hill, where they taunted law enforcement and moved barricades.

Police said anyone found on the streets after the 6 p.m. curfew would be arrested. Officers in full riot gear with shields lined the streets near the U.S. Capitol.

House Speaker Nancy Pelosi said their debate on affirming Biden’s victory would continue after the Capitol was secured.

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4:40 p.m.

The head of the nation’s largest union of flight attendants says people who took part in the violent protest at the Capitol must be banned from flying.

Sara Nelson, president of the Association of Flight Attendants, said in a statement Wednesday that “some of the people who traveled in our planes (Tuesday) participated in the insurrection at the Capitol today.”

She says, “Their violent and seditious actions at the Capitol today create further concern about their departure from the DC area. Acts against our democracy, our government and the freedom we claim as Americans must disqualify these individuals from the freedom of flight.”

Nelson and the union endorsed President-elect Joe Biden over President Donald Trump before the November election.

Trump supporters on a Delta Air Lines flight from Salt Lake City to Washington heckled Utah Sen. Mitt Romney, the lone Republican senator to vote to oust Trump after he was impeached. On an American Airlines flight from Dallas, a large contingent of Trump supporters got in an angry yelling match with other passengers after one of the president’s supporters projected “Trump 2020” on the cabin ceiling and walls.

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4:30 p.m.

Republican Sen. Mitt Romney is blaming President Donald Trump for inciting a violent “insurrection” at the Capitol.

Romney, the GOP’s 2012 presidential nominee and a frequent critic of Trump’s, said the violent breach of the Capitol on Wednesday was “due to a selfish man’s injured pride and the outrage of his supporters whom he has deliberately misinformed for the past two months.″

The Utah senator said those who continue to support Trump’s “dangerous gambit” by objecting to the results of a legitimate, democratic election “will forever be seen as complicit in an unprecedented attack against our democracy.″

Romney ridiculed Texas Sen. Ted Cruz and other Republicans who want an “audit” of the election results: “Please! No Congressional led audit will ever convince those voters, particularly when the president will continue to claim the election was stolen.”

The simple truth, Romney said, “is that President-elect (Joe) Biden won this election. President Trump lost.″

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4:25 p.m.

President Donald Trump has appeared to justify the violent occupation of the U.S. Capitol by his supporters.

In a tweet Wednesday night, Trump said, “These are the things and events that happen when a sacred landslide election victory is so unceremoniously & viciously stripped away from great patriots who have been badly & unfairly treated for so long.”

He added, “Go home with love & in peace. Remember this day forever!”

Trump supporters breached the Capitol building and clashed with law enforcement before disrupting Congress’ tallying of the Electoral College votes. Trump has repeatedly told his supporters that the November election was stolen from him, even though that is not true.

Trump has faced mounting criticism from Republican lawmakers to do more to condemn the violence being perpetrated in his name.

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4:20 p.m.

Acting Attorney General Jeffrey Rosen says the violent pro-Trump protest at the U.S. Capitol was an “intolerable attack on a fundamental institution” of democracy.

Rosen said Wednesday that the Justice Department has been working with U.S. Capitol Police and other federal law enforcement agencies to secure the Capitol. He says hundreds of federal agents from Justice Department agencies were sent to assist.

He called it an “unacceptable situation” and said federal prosecutors “intend to enforce the laws of our land.”

Dozens of President Donald Trump’s supporters breached the security perimeter and entered the Capitol as Congress was meeting, expected to vote and affirm Joe Biden’s presidential win. They were seen fighting with officers both inside the building and outside.

Police declared the Capitol to be secure about four hours later.

UPDATE, 4:10 p.m. Mountain time:

A woman who was shot inside the U.S. Capitol during the violent pro-Trump protest has died.

That’s according to two officials familiar with the matter who spoke to The Associated Press on Wednesday on condition of anonymity because they weren't authorized to speak publicly.

The Metropolitan Police Department said it was taking the lead on the shooting investigation. Police did not immediately provide details about the circumstances of the shooting.

Dozens of supporters of President Donald Trump breached the security perimeter and entered the Capitol as Congress was meeting, expected to vote and affirm Joe Biden’s presidential win. They were seen fighting with officers both inside the building and outside.

Hours later, police had declared the Capitol was secured.

UPDATE, 3:50 p.m. Mountain Time: Capitol complex secure after violent occupation

Officials have declared the U.S. Capitol complex “secure” after heavily armed police moved to end a nearly four-hour violent occupation by supporters of President Donald Trump.

An announcement saying “the Capitol is secure” rang out Wednesday evening inside a secure location for officials of the House. Lawmakers applauded.

The occupation interrupted Congress’ Electoral College count that will formalize President-elect Joe Biden’s upcoming inauguration on Jan. 20.

Lawmakers were evacuated to secure locations around the Capitol complex and Washington, D.C. after thousands of Trump supporters breached the building and skirmished with police officers.

Lawmakers have signaled that they would resume the constitutionally mandated count as soon as it was safe to do so.

UPDATE, 3:40 p.m. Mountain time: Police use tear gas to clear Capitol grounds

Police are using tear gas and percussion grenades to begin clearing pro-Trump protesters from the grounds of the U.S. Capitol ahead of a curfew in Washington.

Police donned gas masks as they moved in Wednesday evening with force to clear protesters from the Capitol grounds shortly before a curfew took hold. In the moments before, there were violent clashes between the police and protesters, who tore railing for the inauguration scaffolding and threw it at the officers.

Police used tear gas and percussion grenades to break up the crowd, which began dispersing.

Dozens of supporters of President Donald Trump breached security perimeter and entered the Capitol as Congress was meeting, expected to vote to affirm Democrat Joe Biden’s presidential win. They were seen fighting with officers both inside the building and outside.

Police said at least one person was shot inside the Capitol; their condition was not immediately known. NBC News is reporting that the woman who was shot has died.

The district’s police chief said at least 13 people were arrested, and five firearms had been recovered during the pro-Trump protests on Wednesday.

UPDATE, 3:05 p.m. Mountain time: DC protesters used chemical irritants on police

The police chief of Washington, D.C., says pro-Trump protesters deployed “chemical irritants” on police in order to break into the U.S. Capitol.

Police Chief Robert Contee says officials have declared the scene a riot. One civilian was shot inside the Capitol on Wednesday. Thirteen arrests were made of people from out of the area.

Mayor Muriel Bowser says the behavior of the Trump supporters was “shameful, unpatriotic and above all is unlawful.” She says, “There will be law and order and this behavior will not be tolerated.”

Metropolitan police have been sent to the Capitol, and authorities were coming in from Maryland, Virginia and New Jersey to help out. The National Guard was also deployed, as were Homeland Security investigators and Secret Service.

Trump had encouraged his supporters to come to Washington to fight Congress’ formal approval of President-elect Joe Biden’s win. He held a rally earlier Wednesday and urged his supporters to march to the Capitol, telling them to “get rid of the weak Congress people” and saying, “get the weak ones get out; this is the time for strength.”

UPDATE, 2:40 p.m. Mountain time: Trump tells 'very special' protesters to go home

President Donald Trump, in a video message, is urging supporters to “go home” but is also keeping up false attacks about the presidential election.

The video was issued more than two hours after protesters began storming the Capitol on Wednesday as lawmakers convened for an extraordinary joint session to confirm the Electoral College results and President-elect Joe Biden's victory.

Trump opened his video, saying, “I know your pain. I know your hurt. But you have to go home now.”

He also went on to call the supporters “very special.” He also said, “we can’t play into the hands of these people. We have to have peace. So go home. We love you. You’re very special.”

Republican lawmakers and previous administration officials had begged Trump to give a statement to his supporters to quell the violence. The statement came as authorities struggled to take control of a chaotic situation at the Capitol that led to the evacuation of lawmakers.

UPDATE: 2:35 p.m. Mountain Time: Explosive device found near Capitol

At least one explosive device has been found near the U.S. Capitol amid a violent occupation of the building by supporters of President Donald Trump.

Law enforcement officials said the device was no longer a threat Wednesday afternoon.

That's according to a U.S. official who was not authorized to discuss the matter publicly and spoke on condition of anonymity.

Thousands of supporters of the president occupied the Capitol complex as lawmakers were beginning to tally the electoral votes that will formalize President-elect Joe Biden’s victory.

Vice President Mike Pence has called on protesters to leave the Capitol immediately, going further than Trump, who merely called for his supporters to “remain peaceful.”

UPDATE, 2:10 p.m. Mountain time: Biden denounces protesters' violence at Capitol

President-elect Joe Biden has called the violent protests on the U.S. Capitol “an assault on the most sacred of American undertakings: the doing of the people’s business.”

Biden also demanded President Donald Trump to immediately make a televised address calling on his supporters to cease the violence that he described as an “unprecedented assault’ as pro-Trump protestors violently occupy U.S. Capitol.

Biden's condemnation came after violent protesters breached the U.S. Capitol on Wednesday afternoon, forcing a delay in the constitutional process to affirm the president-elect’s victory in the November election.

Biden addressed the violent protests as authorities struggled to take control of a chaotic situation at the Capitol that led to the evacuation of lawmakers.

UPDATE, 1:50 p.m. Mountain time: National Guard called in

The White House says National Guard troops along with other federal protective services are en route to the Capitol to help end an violent occupation by President Donald Trump’s supporters who are seeking to prevent the certification of the 2020 presidential election.

Press secretary Kayleigh McEnany tweeted that “At President @realDonaldTrump’s direction, the National Guard is on the way along with other federal protective services.”

She added, “We reiterate President Trump’s call against violence and to remain peaceful.”

Republican lawmakers have publicly called for Trump to more vocally condemn the violence and to call to an end to the occupation, which halted a joint session of Congress where lawmakers were beginning to count electoral votes.

Trump lost the November election to Democrat Joe Biden. He has refused to concede and has worked over the last two months to convince his supporters that widespread voter fraud prevented his own victory.

UPDATE, 1:30 p.m. Mountain time: One person shot at the Capitol

One person has been shot at the U.S. Capitol as dozens of supporters of President Donald Trump stormed the building and violently clashed with police.

That’s according to a person familiar with the matter who spoke to The Associated Press on Wednesday on condition of anonymity amid a chaotic situation.

The exact circumstances surrounding the shooting were unclear. The person said the victim had been taken to a hospital. Their condition was not known.

The shooting came as dozens of Trump supporters breached security perimeters and entered the U.S. Capitol as Congress was meeting, expected to vote and affirm Joe Biden’s presidential win. Trump has riled up his supporters by falsely claiming widespread voter fraud to explain his loss.

— By AP writer Michael Balsamo

UPDATE, 1:25 p.m. Mountain time:

President Donald Trump is encouraging supporters occupying the U.S. Capitol to “remain peaceful,” but he is not calling for them to disperse.

As he faced growing pressure from allies to condemn the violence Wednesday afternoon, Trump tweeted, “No violence!” adding: “Remember, WE are the Party of Law & Order – respect the Law and our great men and women in Blue.”

But Trump did not ask supporters to vacate the area as the unrest continued.

Trump had appeared earlier at a rally and had urged his supporters to march to the Capitol — at one point even suggesting he would join them. He is upset that he lost the presidential election to Democrat Joe Biden and has falsely claimed voter fraud to explain it away.

He also urged his supporters to “get rid of the weak Congress people” — presumably through primary challenges — saying, “get the weak ones get out; this is the time for strength.”

UPDATE, 1:10 p.m. Mountain time:

Pressure is mounting on President Donald Trump to condemn supporters who are violently clashing with law enforcement on Capitol Hill.

Among those urging Trump to act: his former communications director, Alyssa Farah, who tweeted that Trump should “Condemn this now.”

She says, “you are the only one they will listen to. For our country!”

Dozens of people have breached security perimeters at the Capitol, forcing the lockdown of the building and halting the vote to certify Joe Biden’s presidential victory.

Trump has so far offered two tweets, one asking his supporters to “Please support our Capitol Police and Law Enforcement. They are truly on the side of our Country. Stay peaceful!”

His former chief of staff Mick Mulvaney tweeted: “The President’s tweet is not enough. He can stop this now and needs to do exactly that. Tell these folks to go home.”

His lawyer, Rudy Giuliani, also addressed Trump supporters in a tweet, calling them the “patriots challenging the fraudulent election” and telling them that ”POTUS wants you to EXPRESS YOUR OPINION PEACEFULLY.”

UPDATE, 12:50 p.m. Mountain time: 

Members of Congress inside the House chamber were told by police to put on gas masks after tear gas was dispersed in the Capitol Rotunda amid skirmishes by supporters of President Donald Trump.

Pro-Trump protestors breached the U.S. Capitol on Wednesday afternoon, violently clashing with law enforcement as lawmakers were gathered inside to formalize President-elect Joe Biden’s victory in November’s presidential election.

Law enforcement instructed lawmakers to retrieve masks from under their seats amid the clashes. The Capitol building was placed on lockdown, as Trump supporters marched through evacuated public spaces in the building.

After egging on protests, Trump tweeted to his supporters to “stay peaceful” as they violently clash with law enforcement and breached the Capitol building.

Original report:

WASHINGTON (AP) — As demonstrators swarmed the U.S. Capitol, Congress was forced to abruptly halt deliberations Wednesday over Republican challenges to Joe Biden's presidential victory.

President Donald Trump's relentless effort to overturn the election results and cling to the White House drew a massive crowd to the White House, and then Trump sent them to the Capitol.

Lawmakers had convened for an extraordinary joint session to confirm the Electoral College results but protests erupted outside the Capitol and government office buildings were being evacuated.

Though fellow Republicans were behind the challenge to Biden's 306-232 Electoral College victory, Senate Majority Leader Mitch McConnell sought to lower tensions and argued against it. He warned the country "cannot keep drifting apart into two separate tribes" with "separate facts."

McConnell declared, "The voters, the courts and the states all have spoken."

But other Republicans, including House GOP leaders among Trump's allies were acting out the pleas of supporters at his huge Wednesday rally up Pennsylvania Avenue outside the White House to "fight for Trump."

"We have to fix this," said Rep. Steve Scalise of Louisiana, the GOP whip.

The last-gasp effort is all but certain to fail, defeated by bipartisan majorities in Congress prepared to accept the November results. Biden i s to be inaugurated Jan. 20.

Still, Trump vowed to he would "never concede" and urged the massive crowd to march to the Capitol where hundreds had already gathered under tight security.

"We will never give up," Trump told his noontime rally.

Vice President Mike Pence was closely watched as he stepped onto the dais to preside over the joint session in the House chamber.

Pence has a largely ceremonial role, opening the sealed envelopes from the states after they are carried in mahogany boxes used for the occasion, and reading the results aloud. But he was under growing pressure from Trump to overturn the will of the voters and tip the results in the president's favor, despite having no legal power to affect the outcome.

"Do it Mike, this is a time for extreme courage!" Trump tweeted Wednesday.

But Pence, in a statement shortly before presiding, defied Trump, saying he could not claim "unilateral authority" to reject the electoral votes that make Biden president.

Despite Trump's repeated claims of voter fraud, election officials and his own former attorney general have said there were no problems on a scale that would change the outcome. All the states have certified their results as fair and accurate, by Republican and Democratic officials alike.

Arizona was the first of several states facing objections from the Republicans as Congress took an alphabetical reading of the election results.

Biden won Arizona by more than 10,000 votes, and eight lawsuits challenging the results have failed. The state's Supreme Court on Wednesday upheld the dismissal of an election challenge.

The joint session of Congress, required by law, convened before a watchful, restless nation — months after the election, two weeks before the inauguration's traditional peaceful transfer of power and against the backdrop of a surging COVID-19 pandemic.

Lawmakers were told by Capitol officials to arrive early, due to safety precautions with protesters in Washington. Visitors, who typically fill the galleries to watch landmark proceedings, were not allowed under COVID-19 restrictions.

The session also came as overnight results from Georgia's runoff elections put Democrats within reach of a Senate majority.

With the Senate results from Georgia streaming in and Democrats within reach of controlling the chamber, Trump amplified his pleas to stay in office as a veto check on the rival party. At the rally he said he had just talked to Pence and criticized Republicans who are not willing to fight for him as "weak."

While other vice presidents, including Al Gore and Richard Nixon, also presided over their own defeats, Pence supports those Republican lawmakers mounting challenges to the 2020 outcome.

It's not the first time lawmakers have challenged results. Democrats did in 2017 and 2005. But the intensity of Trump's challenge is like nothing in modern times, and an outpouring of current and elected GOP officials warn the showdown is sowing distrust in government and eroding Americans' faith in democracy.

Sen. Mitt Romney, R-Utah, told reporters on Capitol Hill that Trump's election challenge has "disgraced the office of the presidency."

"We'll proceed as the Constitution demands and tell our supporters the truth -- whether or not they want to hear it," Romney said.

Still, more than a dozen Republican senators led by Josh Hawley of Missouri and Ted Cruz of Texas, along with as many as 100 House Republicans, were pressing ahead to raise objections to individual states' reports of Biden's wins.

Under the rules of the joint session, any objection to a state's electoral tally needs to be submitted in writing by at least one member of the House and one of the Senate to be considered. Each objection will force two hours of deliberations in the House and Senate, ensuring a long day.

House Republican lawmakers are signing on to objections to the electoral votes in six states — Arizona, Georgia, Nevada, Michigan, Pennsylvania and Wisconsin.

Hawley has said he will object to the election results from Pennsylvania, almost ensuring a second two-hour debate despite resistance from the state's Republican senator, Pat Toomey, who said the tally of Biden's win is accurate.

Sen. Kelly Loeffler may challenge the results in her state of Georgia. She was defeated in Georgia's runoff to Democrat Raphael Warnock, but was welcomed by crowds of lawmakers in the chamber. She can remain a senator until he is sworn into office.

The other Senate runoff race between Republican David Perdue and Democrat Jon Ossoff remained too early to call Wednesday, though Ossoff declared he won. Perdue, who was seeking reelection, is ineligible to vote in the Senate because his term expired with the start of the new Congress Sunday.

The group led by Cruz is vowing to object unless Congress agrees to form a commission to investigate the election, but that seems unlikely.

Those with Cruz are Sens. Ron Johnson of Wisconsin, James Lankford of Oklahoma, Steve Daines of Montana, John Kennedy of Louisiana, Marsha Blackburn of Tennessee, Mike Braun of Indiana, Cynthia Lummis of Wyoming, Roger Marshall of Kansas, Bill Hagerty of Tennessee and Tommy Tuberville of Alabama.

Many of the Republicans challenging the results said they are trying to give voice to voters back home who don't trust the outcome of the election and want to see the lawmakers fighting for Trump.

Hawley defended his role saying his constituents have been "loud and clear" about their distrust of the election. "It is my responsibility as a senator to raise their concerns," he wrote to colleagues.

As criticism mounted, Cruz insisted his aim was "not to set aside the election" but to investigate the claims of voting problems. He has produced no new evidence.

Both Hawley and Cruz are potential 2024 presidential contenders, vying for Trump's base of supporters.

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Associated Press writers Andrew Taylor, Jill Colvin and Kevin Freking in Washington and Bill Barrow in Atlanta contributed to this report.