WASHINGTON (AP) — After more than 36 years in the Senate, Joe Biden is giving up his seat to assume the vice presidency.

Biden is scheduled to give a farewell address on the Senate floor Thursday morning.

Biden is the first Delawarean and first Catholic to be elected vice president, and he leaves the Senate as its fourth-longest tenured member and youngest seven-term Senator.

He'll be replaced by his former Chief of Staff, Ted Kaufman.