Elena Kagan is on the verge of becoming the 112th justice of the U.S. Supreme Court, after three months of sparring over her legal experience and where she falls on the ideological spectrum. Senators voted, 63-37, on Thursday to confirm Kagan. All Democrats but one voted for her, while all Republicans but five opposed her.

Kagan will be sworn in at the Supreme Court on Saturday. Chief Justice John Roberts Jr. will do the honors. The plan mirrors last year’s Saturday oath-taking for Sonia Sotomayor. A formal investiture ceremony will take place on Oct. 1, at a special sitting of the Court.