FAIRFAX, Va. -- Mitt Romney's controversial comments regarding "the 47 percent" of Americans who don't pay federal income tax came to the fore in Virginia's U.S. Senate race debate here Thursday. In the face-off between two former Old Dominion governors, the issue put both candidates in a tricky spot. The moderator, NBC's David Gregory, kicked of the debate by noting that over 1 million Virginians do not pay federal income tax, and asked Democrat Tim Kaine whether he believed everyone in the state should pay something in federal income tax. “I would be...

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