Obama thanks supporters; Romney concedes

As President Obama wins a second term, his supporters get the party started, while Mitt Romney concedes defeat.

A supporter reacts to voting results displayed on a television screen during Republican presidential candidate and former Massachusetts Gov. Mitt Romney's election night rally, Tuesday, Nov. 6, 2012, in Boston. (AP Photo/David Goldman)

A supporter reacts to voting results displayed on a television screen during Republican presidential candidate and former Massachusetts Gov. Mitt Romney's election night rally, Tuesday, Nov. 6, 2012, in Boston. (AP Photo/David Goldman)

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