U.S. Supreme Court Justice Sonia Sotomayor was sworn in Tuesday in a formal ceremony welcoming her as the court's newest member.
President Barack Obama and Vice President Joe Biden attended the event at the Supreme Court.
Tuesday's event was ceremonial. Sotomayor was first sworn in on August 8, so that she could immediately begin working on the high court. She is the first Hispanic and only the third woman to serve as a Supreme Court justice.
The president picked Sotomayor to replace Justice David Souter, who recently retired. She is not expected to change the ideological balance of the court.
Her first official case as a justice will come Wednesday when the court hears arguments on whether to overturn restrictions on how and when corporations and labor unions can take part in political campaigns.
The case stems from a documentary called Hillary: The Movie, a highly critical look at now-Secretary of State Hillary Clinton in her bid for the presidency last year. A conservative group called Citizens United produced the 90-minute film about the former first lady and then-U.S. senator.
The dispute centers on whether the documentary is the equivalent of a political advertisement and subject to regulation by federal campaign finance laws.
The court is revisiting the case after hearing arguments about the documentary in March.