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NEW YORK, NY - APRIL 26: Republican presidential candidate Donald Trump speaks to supporters and the media at Trump Towers following the conclusion of primaries Tuesday in northeastern states on April 26, 2016 in New York, New York. Trump again gained more delegates to move him closer to the Republican presidential nomination. (Photo by Spencer Platt/Getty Images)

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Republican frontrunner Donald Trump speaks at Trump Tower in New York on April 26 after winning primaries in Pennsylvania, Maryland, Connecticut, Rhode Island and Delaware.

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HAGERSTOWN, MD - APRIL 24: Republican presidential candidate Donald Trump speaks while campaigning at the Hagerstown airport April 24, 2016 in Hagerstown, Maryland. Maryland holds their presidential primary on Tuesday, along with Delaware, Pennsylvania, Rhode Island and Connecticut. (Photo by Win McNamee/Getty Images)

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HOUSTON, TX - FEBRUARY 25: Republican presidential candidates Florida Sen. Marco Rubio (R-FL), Donald Trump, and Texas Sen. Ted Cruz (R-TX) stand on stage for the Republican National Committee Presidential Primary Debate at the University of Houston's Moores School of Music Opera House on February 25, 2016 in Houston, Texas. The candidates are meeting for the last Republican debate before the Super Tuesday primaries on March 1. (Photo by Joe Raedle/Getty Images)

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CHARLOTTE, NC- MARCH 14: Democratic presidential candidate former Secretary of State Hillary Clinton speaks during a Get Out the Vote event at Grady Cole Center on March 14, 2016 in Charlotte, North Carolina. Hillary Clinton is campaiging Illinois and North Carolina. (Photo by Justin Sullivan/Getty Images)

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RENO, NV - FEBRUARY 23: Republican presidential candidate Donald Trump speaks at a rally at the Nugget February 23, 2016 in Sparks, Nevada. The Nevada GOP caucus is tonight. (Photo by David Calvert/Getty Images)

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SHELBURNE, MA - MARCH 01: Voters check in before casting their ballots in the Shelburne Town Hall on March 01, 2016 in Shelburne, Massachusetts. Officials are expecting a record turnout of voters in Massachusetts, one of a dozen states holding Super Tuesday presidential primaries or caucuses. (Photo by Matthew Cavanaugh/Getty Images)

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