Paul Ryan says he won't run in 2016 if Mitt Romney does. Is that a hint?

Former Massachusetts Gov. and GOP presidential candidate Mitt Romney shakes hands with his former vice-presidential running mate US Rep. Paul Ryan of Wisconsin before interviewing Ryan about his new book in Chicago, Aug. 21, 2014. Paul Ryan says he won't run for president in 2016 if his old friend Mitt Romney mounts another effort to win the Oval Office.

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