The 2008 United States presidential election was the 56th quadrennial presidential election, held on Tuesday, November 4, 2008. The Democratic ticket of Barack Obama, the junior U.S. Senator from Illinois, and Joe Biden, the senior U.S. Senator from Delaware, defeated the Republican ticket of John McCain, the senior Senator from Arizona, and Sarah Palin, the Governor of Alaska. Obama became the first African American ever to be elected to the presidency, as well as being only the third sitting United States Senator elected president, joining Warren G. Harding and John F. Kennedy.