(NEWSER) – Donald Trump, who spent years peddling "birther" conspiracy theories about President Obama, is now targeting somebody who really was born in a foreign country: Ted Cruz.

In a Washington Post interview, Trump warns that the issue of whether the Canadian-born Cruz counts as a "natural-born" American citizen could keep the courts busy for years. "It'd be a very precarious one for Republicans because he'd be running and the courts may take a long time to make a decision," Trump says. "You don't want to be running and have that kind of thing over your head."

Cruz, who was born in Alberta to an American mother and Cuban father, formally renounced his Canadian citizenship in 2014. His family moved to the US when he was 4, and he apparently wasn't aware of his dual citizenship until 2013.

Photo: Getty Images

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