John Conyers, the Dean of the United States House of Representatives, administered the oath of office to Paul Ryan who, in turn, administered the oath of office en masse to the rest of the members of the 115th Congress.
John Conyers administered the oath of office to Paul Ryan. This Paul Ryan administered the oath of office en masse to the rest of the members of the 115th Congress. This was in turn. John Conyers was the Dean of the United States House of Representatives.