Amy Coney Barrett
Amy Coney Barrett was confirmed by the Senate in a 52-48 virtual party line vote. She begins work as a justice on after taking the second of two oaths required of judges by federal law. No justice has assumed office so close to a presidential election or immediately confronted issues so directly tied to the incumbent president's political and personal fortunes.
The NCBA's Mary-Thomas Hart explains - it's likely she will be a friend to farmers and ranchers.
At 48, she's the youngest justice since Clarence Thomas joined the court in 1991 at age 43.
As she settles into her new office at the court, Barrett will be joined by four law clerks, usually recent law school graduates who have experience working for federal judges.
When the court reopens to the public and the justices return to the courtroom, Barrett is expected to assume several duties reserved for the court's junior justice. She will be a member of the committee that oversees the court's public cafeteria, and the person who takes notes and answers the door when someone knocks during the justices' private conferences.