Presidential candidate George Wallace reaches out for the hands of his supporters at the Texas State Convention of his American Independent Party, Dallas, Sept. 17, 1968. PhotoQuest/Getty Images hide caption

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Is Donald Trump A Modern-Day George Wallace?
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In a Republican race marked by anger and anti-establishment fervor, Kasich is running the optimistic campaign. Is that enough to win? Andrew Burton/Getty Images hide caption

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Balloons fall at the 2012 Republican National Convention in Tampa, Fla. This year's convention in Cleveland is likely to be far more complicated. Charles Dharapak/AP hide caption

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Can A Candidate Pay Delegates? Plus, 3 Possible GOP Convention Scenarios
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Bernie Sanders, I-Vt., pumps his fist during a campaign rally in Laramie, Wyo., Tuesday. Brennan Linsley/AP hide caption

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After Wisconsin, Demographics Suggest Rougher Terrain For Sanders, Cruz
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"One of the most puzzling arguments that I've heard from [Senate Majority Leader] Mitch McConnell and some other Republicans is this notion that the American people should decide" the next Supreme Court justice," Obama told NPR's Nina Totenberg Thursday. Nick Michael/NPR hide caption

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