Senator Ted Cruz, a Republican from Texas and 2016 presidential candidate, speaks during the "Wisconsin Decides 2016" hosted by Republican Party of Milwaukee in Milwaukee, Wisconsin, on Friday, April 1, 2016. After months of tense dealings with Republican presidential front-runner Donald Trump, the Republican National Committee's biggest challenge is beginning to take shape: how to navigate a scenario in which Trump leads his challengers in votes and delegates heading into the convention, but loses the nomination. Photographer: Daniel Acker/Bloomberg via Getty Images
