Trump campaign manager: He'll debate Cruz once a judge rules Cruz eligible to run

“Once you’ve gotten that ruling from the federal judge and you’re the last man standing in this presidential contest next to Donald Trump, we’ll be happy to have a debate with you one-on-one, anywhere you want, because that’s the way the system works,” Lewandowski said. “But, as it stands right now, we don’t even know if Ted Cruz is legally eligible to run for president of the United States.”

Trump and his supporters have argued that Cruz, who was born in Canada to a U.S. citizen, is not natural born and therefore ineligible to run for president under the Constitution.