The Senate Judiciary Committee commenced hearings on Roberts's nomination on September 12, 2005. Later that month, on September 29, Roberts was confirmed by the Senate as the 17th Chief Justice by a 78–22 vote. He took the Constitutional oath of office, administered by Associate Justice John Paul Stevens at the White House, that same day. On October 3, he took the judicial oath provided for by the Judiciary Act of 1789 at the United States Supreme Court building, prior to the first oral arguments of the 2005 term.