WWE chairman Vince McMahon (C) has his head shaved by Donald Trump (L) and Bobby Lashley (R) after losing a bet in the Battle of the Billionaires at the 2007 World Wrestling Entertainment's Wrestlemania in Detroit, Michigan. Bill Pugliano/Getty Images hide caption

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4 Ways Donald Trump's Pro Wrestling Experience Is Like His Campaign Today
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A Donald Trump supporter and critics of the presidential candidate yell at each other outside a rally for the Republican in Costa Mesa, Calif., on Thursday. Chris Carlson/AP hide caption

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Donald Trump, the front-runner for the Republican presidential nomination, gave an outline of his worldview and foreign policy goals in an address in Washington Wednesday. Evan Vucci/AP hide caption

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Republican presidential candidate Sen. Ted Cruz is joined by former Hewlett-Packard CEO Carly Fiorina during a rally in Indianapolis on Wednesday. Cruz announced he has tapped Fiorina to serve as his running mate. Michael Conroy/AP hide caption

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Hillary Clinton addresses supporters after winning four of five Northeastern states Tuesday night. Eduardo Munoz Alvarez/AFP/Getty Images hide caption

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Republican presidential candidate Donald Trump speaks at a campaign rally Monday in Wilkes-Barre, Pa. Trump won Tuesday's primary race in the state Mel Evans/AP hide caption

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