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Former Mexican president calls Donald Trump a "crazy guy"

Former Mexican President Vicente Fox blasted Donald Trump Thursday, using profanity to respond to Trump's insistence that Mexico must pay for a wall along the U.S.-Mexico border and calling the GOP front runner a "crazy guy."

"I declare: I'm not going to pay for that f***ing wall," Fox told Fusion in an interview. "He should pay for it--he's got the money."

Former Mexican President Vicente Fox says Mexico won't pay for an immigration wall proposed by candidate Donald Trump Fusion/ABC

Fox added that he's shocked by the fact that Trump won among Latino voters in Tuesday's Nevada caucuses. He called on American Latinos to not hand the country over to a "crazy guy."

"Please, you Hispanics, Latinos in the U.S., open your eyes," he said. "It's not to defend our race. Not to defend our creed. It's to defend this very same nation that is hosting you. This nation is going to fail if it goes into the hands of a crazy guy."

Trump responded in his usual bombastic style on Twitter, calling on Fox to apologize for using colorful language:

Fox is the second Mexican president to criticize Trump for his rhetoric over Mexican immigrants and the need for a wall. Last fall, President Enrique Pena Nieto said in regards to Trump that the Mexican government "fully discredits and condemns any expression of a discriminatory character ... that specifically hurts Mexicans."

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