Mike Crapo of Idaho Falls said Friday he believes both Brett Kavanaugh and the woman who says he tried to rape her.

Crapo, Idaho’s senior U.S. senator, is one of the 21 senators on the Judiciary Committee. He voted to advance Kavanaugh’s nomination to the full Senate, though a supplemental investigation of sexual assault allegations made by Ford and one other woman is planned.

The committee earlier heard testimony from California professor Christine Blasey Ford, who says Kavanaugh and a friend drunkenly tried to rape her at a party when they were teenagers in 1982, and from Kavanaugh, who strongly denies it.

“I came away believing there had in fact been a sexual assault in Dr. Ford’s past,” Crapo, a Republican, said Friday morning.

“As has been stated, it was not entirely clear where, when and all the circumstances, but there was no doubt in my mind she truthfully testified.”

However, Crapo said he also believed Kavanaugh.

“I have to say, I also listened very carefully to Judge Kavanaugh as he testified, and I felt that the testimony he gave was also honest,” Crapo said. “He gave, I thought, very strong testimony that he was not there.”

Crapo then said he intended to vote for the nomination.

“I don’t feel the evidence shows that Judge Kavanaugh was there that night,” he said. “I believed his testimony. I believed Dr. Ford’s testimony about the sexual assault.”

After hours of debate Friday and speculation over where the swing vote, Arizona Republican Jeff Flake, would end up falling, the committee voted 11-10 along party lines to advance Kavanaugh’s nomination to the full Senate.

Flake said he was voting to advance the nomination but also called for the final confirmation vote to give the Federal Bureau of Investigation more time to look into the allegations against Kavanaugh.

While the scheduling is up to Senate Majority Leader Mitch McConnell, he can’t afford to lose many votes. With the Senate divided 51-49 between Republicans and Democrats, Kavanaugh’s ultimate confirmation is expected to come down to the votes of a handful of moderate Republicans and red-state Democrats.

President Donald Trump ordered the FBI investigation, saying it should be limited in scope and last no longer than a week.

Both Crapo and fellow Idaho Republican Sen. Jim Risch are supporters of Kavanaugh’s nomination and conservative judicial philosophy and met with him earlier this summer.

The Associated Press contributed to this article.