Since Arizona's admission to the Union in February 1912, it has participated in 28 United States presidential elections. In the 1912 presidential election, the incumbent president William Howard Taft finished fourth in Arizona, receiving just 12.75% of the popular vote. In the 1936 presidential election, the Democratic Party's candidate Franklin D. Roosevelt won Arizona, defeating the Republican Party's candidate Alf Landon by 42.92%, which remains the largest margin of victory in the state's history. Ross Perot, the independent candidate in the 1992 presidential election, received the highest vote share (23.79%) ever won by a third-party candidate in Arizona.