President Barack Obama (R) debates with Republican presidential candidate Mitt Romney (L) as moderator Bob Schieffer listens on Oct. 22, 2012. Win McNamee/Getty Images hide caption

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Democrat Richard Carmona (left) and Republican Rep. Jeff Flake shake hands before Thursday's debate in Chandler, Ariz. Ross Franklin/AP hide caption

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Former Maine Gov. Angus King, an independent candidate for the U.S. Senate, greets potential voters Oct. 1 in Bath, Maine. Joel Page/AP hide caption

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Republican presidential nominee Mitt Romney and President Barack Obama shake hands at the first presidential debate at the University of Denver, Wednesday. Charlie Neibergall/AP hide caption

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Iowa Supreme Court Justice David Wiggins, right, faces a retention vote Nov. 6. Charlie Neibergall/AP hide caption

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Former South Carolina Republican Rep. Bob Inglis now runs the Energy and Enterprise Initiative. /Energy and Enterprise Initiative hide caption

itoggle caption /Energy and Enterprise Initiative

Emily Goldberg holds up a sign during the NAACP voter ID rally opposing Pennsylvania's voter ID law last Thursday in Philadelphia. With her is her 2-year-old daughter, Willa. Michael Perez/AP hide caption

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