Video: 'ABC NEWS - ELECTION NIGHT- 2012 (7.00 P.M E.T - 2.00 A.M E.T)'

(Tuesday, November 6, 2012; during the 2012 United States presidential election) — Democratic President Barack Obama of Illinois was re-elected the 44th president of the United States today, defeating Republican former Governor Mitt Romney of Massachusetts.

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Obama and his running mate, Vice President Joe Biden of Delaware, received 51.1 percent of the popular vote compared to 47.2 percent for Romney and his running mate, U.S. Representative Paul Ryan.

Video: 'CBS NEWS ELECTION NIGHT 2012 - 7:30 P.M E.T - 3:00 A.M E.T'

The Democratic ticket was officially elected on Dec. 17, 2012, when members of the Electoral College met and cast 332 votes for Obama and Biden and 206 votes for Romney and Ryan.

Video: 'The American Presidential Election of 2012'

The electors’ votes were tabulated and certified on Jan. 4, 2013, during a joint session of Congress. Obama and Biden were inaugurated for second terms on January 20, 2013.

Video: 'The 2012 Election Explained'