Real estate tycoon Donald TrumpDonald TrumpSeven key players for Trump on immigration Spicer: Media coverage of Trump has not been fair Kasich finds it hard to rule out 2020 MORE cast doubt Monday on whether Sen. Ted CruzTed CruzKasich finds it hard to rule out 2020 Trump in campaign mode at NRA convention Trump’s hands are tied on 9th Circuit MORE (R-Texas) can run for president, because Cruz was born in Canada.
"It’s a hurdle; somebody could certainly look at it very seriously," Trump said during a phone interview Monday on My Fox New York.
Trump, who says he is exploring a bid for president in 2016, was part of the "birther" movement that questioned President Obama's birth place, as well as the veracity of his birth certificate. He recently took credit for getting Obama to release his birth certificate while speaking at the Conservative Political Action Conference in February.
After flirting with a 2012 presidential bid, Trump has announced an exploratory committee for 2016 and says he will not renew his contract for his TV show, "The Apprentice" on NBC.
Cruz confirmed his bid for president on Monday morning during a speech at Liberty University.
“It’s going to take a new generation of courageous conservatives to help make America great again, and I’m ready to stand with you to lead the fight," he said in a video touting the speech.
Trump claimed he had come up with Cruz's line about making America great again and questioned whether he should have secured the rights to it ahead of the 2016 campaign.
"The line of 'Make America great again,' the phrase, that was mine, I came up with it about a year ago, and I kept using it, and everybody's now using it, they are all loving it," Trump said.
"I don’t know I guess I should copyright it, maybe I have copyrighted it."