Yes, this happened today...
Donald Trump Redirects His Birther Fire At Ted Cruz
"He's got a hurdle that nobody else seems to have at this moment. It's a hurdle and somebody could certainly look at it very seriously. He was born in Canada," Cruz said in an interview with myfoxny.com, adding that "you're supposed to be born in this country."
Donald Trump Redirects His Birther Fire At Ted Cruz