who sits behind the president during state of the union
State of the Union Both the Speaker and the Vice President sit at the Speaker's desk, behind the President for the duration of the speech. If either is unavailable, the next highest-ranking member of the respective house substitutes. Once the chamber settles down from the President's arrival, the Speaker officially presents the President to the joint session of Congress. The President then delivers the speech from the podium at the front of the House Chamber.
State of the Union The address fulfills rules in Article II, Section 3 of the U.S. Constitution, requiring the President to periodically "give to the Congress Information of the State of the Union, and recommend to their Consideration such measures as he shall judge necessary and expedient."[1] During most of the country's first century, the President primarily only submitted a written report to Congress. After 1913, Woodrow Wilson, the 28th U.S. President, began the regular practice of delivering the address to Congress in person as a way to rally support for his agenda.[1] With the advent of radio and television, the address is now broadcast live across the country on many networks.[4]