Senator Ted Cruz, a Republican from Texas and 2016 presidential candidate, pauses while speaking during a campaign rally at the Weinberg Theater in Frederick, Maryland, U.S., on Thursday, April, 21, 2016. Donald Trump's dominating victory in New York's primary this week kept rival Cruz from winning any delegates, meaning that the Texas senatoras well as Ohio Governor John Kasich now has no mathematical chance of winning the nomination before primary voting ends on June 7. Photographer: Andrew Harrer/Bloomberg via Getty Images