(FILES) The dome of the US Capitol is seen at dusk in Washington, DC on November 13, 2023. For the wider world, the US election is all about who gets to move into the White House, but for many Americans, the battle for control of Congress is just as important -- and looks set to go down to the wire. While the presidential race sucks up all the oxygen, hundreds of congressional districts nationwide will determine whether the incoming leader gets a unified government dedicated to enacting his or her agenda -- or bureaucratic deadlock. (Photo by Mandel NGAN / AFP) (Photo by MANDEL NGAN/AFP via Getty Images)