Sen. Jeff Flake, R-Ariz., who has repeatedly battled with Trump and will retire in January, said he, too, planned to vote for Kavanaugh's confirmation.
In formal court photographs, Kavanaugh will stand in the back and on the right end, from the viewer's perspective.
Sen. Mazie Hirono (D-Hawaii), who gained national notice during the confirmation fight for urging men to "shut up and step up" in the wake of Ford's allegations, said Democratic voters would be highly motivated to turn out and punish Republicans for the limited Federal Bureau of Investigation probe of Kavanaugh following his hearing. Chief Justice John Roberts administered the constitutional oath and retired Supreme Court Justice Anthony Kennedy administered the judicial oath, according to the Supreme Court.
"I've done so much for Alaska, I'm shocked to see her vote", he said.
"It unleashed something inside me".
"I don't have a statement right now because I did not come to a decision on this until walking into the floor this morning", she said in an impromptu appearance after the key procedural vote to a pack of reporters waiting outside the Senate chamber.
And it was fought against the backdrop of the #MeToo movement and Trump's unyielding support of his nominee and occasional mocking of Kavanaugh's accusers. We simply followed the tradition in America, which is that if you have a Senate of a different party than the president, you don't fill a vacancy created in a presidential year.
The allegations led to Kavanaugh and his accuser, Christine Blasey Ford, testifying before the Senate Judiciary Committee during an epic hearing.
A separate, public swearing-in ceremony is planned for 7:00 pm (2300 GMT) Monday in the White House's East Room.
Republican Senate Majority Leader Mitch McConnell, who has railed against Kavanaugh's critics, said he was "proud" of his colleagues and predicted a bright future for his party.
The cost of Kavanaugh's victory? The legitimacy of the USA supreme court
Besides the accusations of sexual misconduct, another issue - abortion rights - mobilised the opposition to Kavanaugh. Protesters could be heard shouting in the Senate chamber as Vice President Mike Pence presided over the final vote.
The embattled Kavanaugh was poised to win Senate confirmation later on Saturday, weathering sexual misconduct accusations and criticism of his character and temperament.
About 100 anti-Kavanaugh protesters climbed the Capitol's East Steps as the vote approached, pumping fists and waving signs. "If they won't listen to our voices, then they'll listen to our vote". "Frankly we are just less than a month away from an election". "Democrats have become too EXTREME and TOO DANGEROUS to govern".
Markey said the newest member of the high bench will "rubber stamp (Trump's) right-wing agenda from the bench and fulfill his campaign promises to overturn Roe v. Wade and the Affordable Care Act". A supreme court majority born under these circumstances, which protected Trump from the law and enabled gerrymandering and voting restrictions that benefited Republicans, would hasten the movement of Trump's United States into the same camp as Erdogan's Turkey and Orban's Hungary.
So, if it was Kavanaugh as Ford alleges, why not file a police report?
The choice of Kavanaugh to replace retired justice Anthony Kennedy was controversial from the start - but the initial focus was exclusively on the conservative views held by the married father of two. But he was accused of a drunken sexual assault in their high school years by Christine Blasey Ford, now a professor of psychology in Palo Alto, California.
Protesters occupy the Hart Senate Office Building during a rally against Kavanaugh in Washington.
As the court's newest and therefore most junior associate justice - confirmed 50-48 Saturday in the closest margin in more than a century - Kavanaugh will bear some of the minor indignities that accompany the role.
"I think that's premature", Coons said on NBC News's "Meet the Press". She was the deep-red state's first female senator, she's up for re-election in November, she's behind in the polls, and she knows voting against Kavanaugh will hurt her even worse.