President Obama making his case this morning at the University of Michigan in Ann Arbor. Bill Pugliano/Getty Images hide caption

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Sen. John McCain, right, as he endorsed Mitt Romney's bid for the presidency earlier this month. Chip Somodevilla/Getty Images hide caption

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In the final State of the Union address of his term, President Obama called for an economy "where everyone gets a fair shot." Brendan Smialowski/Getty Images hide caption

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President Obama at the Apollo Theatre in Harlem on Thursday (Jan. 19, 2012). Jewel Samad /AFP/Getty Images hide caption

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