Former Mexican President Tells Trump: "I'm Not Paying For That F—ing Wall"

Presidental Debate Donald Trump - H 2016
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The GOP frontrunner wants an apology from Vicente Fox for "horribly" using the "F-word."

In an interview Thursday with Univision-owned Fusion, former Mexican president Vicente Fox lashed out at Republican presidential candidate Donald Trump's proposal to make Mexico pay for a border wall.

"I declare, I'm not going to pay for that f—ing wall," Fox told Fusion's Jorge Ramos. "He should pay for it. He's got the money."

Fox went on to say that the Hispanics who voted for Trump in the Nevada caucus are "followers of a false prophet" who will lead them into the desert.

Trump fired back at Fox on Twitter, saying, "Vicente Fox horribly used the F word when discussing the wall. He must apologize. If I did that there would be a uproar."

Fox is the second former Mexican president to criticize Trump's plan to make Mexico pay for a wall. Earlier this month, ex-president Felipe Calderon said Mexico won't pay a single cent for a "stupid wall."

Vice President Joe Biden, who was in Mexico on Thursday for economic talks, spoke about "dangerous, damaging and incredibly ill-advised presidential campaign rhetoric," but he didn't single out Trump, according to an AFP report.

AFP quoted Biden as saying, "This too shall pass ... we have gone through these episodes of xenophobia, but they have always been overcome."

Ramos, the Fusion anchor interviewing Fox, was kicked out of a Trump press conference in August when he tried to ask questions about Trump's controversial anti-immigrant remarks made during a speech in June to announce his candidacy.