UPDATE: WASHINGTON (AP) - President Donald Trump says he is a "hundred percent" sure that the woman accusing Brett Kavanaugh of sexually assaulting her when they were in high school named the wrong person.
Kavanaugh was confirmed by the Senate on Saturday by a 50-48 vote.
His Supreme Court nomination was roiled for weeks by allegations of sexual misconduct and drunken behavior when Kavanaugh was a high school and college student.
Trump tells reporters on Air Force One that one of the reasons he chose Kavanaugh "is because there's nobody with a squeaky-clean past" like him.
Trump also says he believes a rally speech in which he mocked Christine Blasey Ford's sexual assault allegations against Kavanaugh proved to be a turning point for the nomination.
The remarks drew criticism from Democrats and Republicans in the Senate.
Brett Kavanaugh has taken the oaths of office to become the 114th Supreme Court justice, just a couple of hours after the Senate voted 50-48 to confirm him.
The quick swearing in enables Kavanaugh to begin work immediately in advance of arguments at the court Tuesday in two cases involving prison sentences for repeat offenders.
The court says Kavanaugh took the oath required by the Constitution and another for judges that is part of federal law in the same room where the justices meet for their private conferences.
The 53-year-old justice's wife, children and parents were in attendance.
Chief Justice John Roberts administered the constitutional oath and retired Justice Anthony Kennedy administered the judicial oath.
Kavanaugh is replacing Kennedy on the bench and once served as his law clerk.
WASHINGTON (AP) - The Senate has confirmed Brett Kavanaugh as an associate justice of the Supreme Court, putting a second nominee from President Donald Trump on the highest court in the land.
Kavanaugh was confirmed 50-48 Saturday during a historic roll call vote in the Senate chamber. The two-vote margin is one of the narrowest ever for a Supreme Court nominee.
The vote unfolded with protesters shouting from the gallery. The vote closes out a bitter struggle over Kavanaugh's nomination, inflamed by accusations that he sexually assaulted women in the 1980s. Kavanaugh forcefully denied the accusations in sworn testimony.