On Friday with CNN’s Jack Tapper, Donald Trump adamantly defended his claims Judge Gonzalo Curiel overseeing a lawsuit against Trump University is biased because of his Mexican heritage — fighting back against criticism that his objections are racist. Curiel is in fact a former member of La Raza.

“He’s proud of his his heritage. I respect him for that,” Trump said, dismissing charges that his allegation was racist. “He’s a Mexican. We’re building a wall between here and Mexico. I’m building a wall. I’m trying to keep business out of Mexico. Mexico’s fine. He’s of Mexican heritage, and he’s very proud of it, as I am of where I come from.”

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“If he was giving me a fair ruling, I wouldn’t say that,” Trump further informs Tapper, pointing again to Curiel’s background. “I think that’s why he’s doing it.”

Trump also dismissed concerns raised by Hillary Clinton on Friday about his temperament when it comes to foreign policy. On Thursday, Clinton spouted Trump had “thin skin” and should not be entrusted with the U.S. military arsenal.

“I don’t have thin skin. I have very strong and very thick skin,” Trump replied Friday. “I have a strong temperament. It’s a very good temperament and it’s a very in-control temperament, or I wouldn’t have built this unbelievable company. I wouldn’t have built all of the things I’ve been able to do in life. You can’t have that success without good temperament. We have been taken advantage of by everybody. We have people with weak temperaments.”