Large groups of protesters gathered outside the Capitol building and across the street at the Supreme Court ahead of the final vote on Saturday.
His confirmation provides a defining accomplishment for President Donald Trump and the Republican Party, which found a unifying force in the cause of putting a new conservative majority on the court.
The U.S. Senate confirmed Brett Kavanaugh's nomination to the Supreme Court on Saturday by a vote of 50-48. Lisa Murkowski of Alaska.
The bitter duel between Republicans and Democrats over Kavanaugh is now likely to be prolonged as a motivating issue in the midterm elections in four weeks and will trigger recriminations and political reverberations that endure for years to come.
He has vehemently denied all allegations of sexual misconduct against him when he was in high school and college.
"They're thinking of their sons, they're thinking of their husbands, their brothers, their uncles, and others and women are, I think, extremely happy", Trump told reporters. Mitch McConnell and House Speaker Paul Ryan.
EDITOR'S NOTE - Julie Pace has covered the White House and politics for The Associated Press since 2007. He also knocked the "tiny" crowd on the steps of the court.
Kavanaugh's nomination process has been plagued in recent weeks by sexual misconduct allegations made by three women.
Trump has called for tougher libel laws in the past, most recently in a tweet that said he wanted the ability to seek "retribution" after journalist Bob Woodward's explosive book "Fear" detailed Trump's administration as plagued by chaos.
Senators then endured a rare all-night session to satisfy the requirement of 30 hours of debate following yesterday's vote.
"Very, very good", Trump said. Chuck Grassley, R-Iowa, chairman of the Senate Judiciary Committee, called the 53-year-old Kavanaugh a victim of "an ugly left-wing smear campaign" and charged Democrats with character assassination.
Senate Minority Leader Chuck Schumer, D-N.Y., called Kavanaugh's confirmation "a low moment for the Senate, the court, and the country" and said of Kavanaugh, "He doesn't belong on the nation's highest bench".
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Gorsuch was confirmed by the Senate with a 54-45 vote months later.
Sen. Susan Collins says she believes Christine Blasey Ford, who accused now Supreme Court Justice Brett Kavanaugh of sexually assaulting her when they were teenagers, was attacked, but not by Kavanaugh.
But her "no" vote will be balanced by a "yes" from the only Democrat set to back the nomination.
If senators do not change their voting intentions, Judge Kavanaugh will be appointed to the top United States court. "And I think she still feels that was the right thing to do, so I don't think she has any regrets". "FBI investigation was done, is completed and Senate voted".
She wanted to make clear, however, that her support of Kavanaugh does not mean she does not believe in the validity of the #MeToo movement.
In a sign of the tense mood at the Capitol, Republican Majority Whip John Cornyn of Texas was interrupted twice by yelling from protesters in the Senate gallery, which is open to visitors. U.S. Capitol Police began arresting some of them.
"Our base is on fire", the top Senate Republican said in an interview with The Hill news daily.
Comparing opponents to "arsonists" and an "angry mob" that tried to bring down his Supreme Court nominee, Trump urged supporters to "stop the radical Democrats" and said that "we need more Republicans" in Congress.
Several polls show that Republican enthusiasm about voting, which had lagged behind, jumped after the Kavanaugh hearing last week.
"I have no doubt", Mr Trump said, telling reporters that he had chosen Mr Kavanaugh, in part, because "there's nobody with a squeaky-clean past like Brett Kavanaugh".
He added: "I've never campaigned against a colleague in my life". She next faces voters in 2022. Support from Collins and Manchin would give Kavanaugh at least 51 votes, assuming no one else changes their stance. That support all but assured Republicans of the votes they needed to push the nomination across the finish line. "I thought I had to even the playing field, because it was very unfair to the judge".