At Thursday's debate, Donald Trump said, "I was born here. Big difference."

To which Cruz replied, "On the issue of citizenship, I'm not going to use your mother's birth against you."

"Because it wouldn't work," Trump quipped.

Trump has been bringing up Cruz's citizenship as an issue for some time.

"There's a big question mark on your head, and you can't do it to the party," Trump said.

"I'll tell you, I'm not going to be taking legal advice from Donald Trump," Cruz said.

This video includes images from Getty Images. 

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Braves first baseman Matt Olson (left) is greeted by Ronald Acuña Jr. after batting during the MLB Home Run Derby as part of the All-Star Game festivities on Monday, July 14, 2025, at Truist Park in Atlanta. (Jason Getz/AJC)

Credit: Jason Getz/AJC