Missouri was historically considered a "bellwether state", having voted for the winner in every presidential election since 1904, with four exceptions: in 1956 for Democrat Adlai Stevenson II; in 2008 for Republican John McCain; in 2012 for Republican Mitt Romney; and in 2020 for Republican Donald Trump. Missouri's House delegation has generally been evenly divided, with the Democrats holding sway in the large cities at the opposite ends of the state, Kansas City and St. Louis (although the Kansas City suburbs are now trending Republican), and the Republicans controlling the rest of the state, save for a pocket of Democratic strength in Columbia, home to the University of Missouri. However, as a result of the 2012 elections, Republicans now have a 6–2 majority in the state's House delegation, with African-American Democrats representing the major cities. Missouri's Senate seats were mostly controlled by Democrats until the latter part of the 20th century, but the Republicans have held one or both Senate seats continuously since 1976.