Four people were arrested Thursday from a group of protesters gathered outside Sen. Jeff Flake's office Thursday urging him to vote against Brett Kavanaugh's confirmation to the Supreme Court., Phoenix police confirmed.

Several dozen protesters and a few counterprotesters gathered outside Flake's office at 2200 E. Camelback Road in Phoenix. A group called Patriot Movement AZ had gathered Wednesday to support Kavanaugh's confirmation, and some members returned Thursday.

Flake, R-Ariz., said Thursday that the FBI investigation of Kavanaugh he helped broker last week turned up no additional support for the claim that the Supreme Court nominee sexually assaulted Christine Blasey Ford decades ago.

Flake is considered one of the swing votes who could make or break Kavanaugh's confirmation vote, which could be held as early as Friday.

Demonstrators said victims of sexual assault or abuse were among those gathered in front of the senator's office Thursday.

"It really warms my heart that there are so many people here who are willing to believe survivors, who believe that he should not be appointed, regardless if you believe her or not," said Kristina Barnsdale, who identified herself as a sexual assault survivor.

Jennifer Harrison, a member of Patriot Movement AZ, was passing out flyers to protesters with what she said were facts about Kavanaugh, including that he had passed seven FBI background checks.

"He's a constitutional judge. He's an extraordinarily qualified nominee, consistently among the best in the law profession," Harrison said. "There's no evidence, no corroboration, no witnesses, no finding of facts of any sexual assault claims. So these facts do matter."

Dan O'Neal, state coordinator for Progressive Democrats of America, said they wanted to persuade Flake to vote against Kavanaugh for the Supreme Court seat.

'We've got a short 36 hours or whatever before they vote, and Jeff Flake needs to say, 'No,'" O'Neal said.

Flake has shown, at least, an ability to be open-minded, he said.

"We're worried this latest FBI investigation was kind of a sham," O'Neal said, "and that the sham investigation, as quick as it was, is going to give him the cover to go ahead and vote no, and that would be disastrous."

Four people who were on private property were taken into custody by Phoenix police officers, officials said in a statement.

Around 12:30 p.m., the protesters sat outside the doors leading from the offices to the courtyard. The private property was not part of Flake's office and the property owner asked the protesters to leave, Phoenix police said in a statement.

Police said officers repeatedly advised the protesters they would be arrested if they did not leave.

The protesters refused and four women indicated their intent to be arrested, police said. They were arrested without incident and face charges of criminal trespassing, Phoenix police said.

Their names were not immediately released.

Arizona Republic reporter Ronald J. Hansen contributed to this report.

Check back at azcentral.com for updates.

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