Fox says Trump believes in the white supremacy

Former Mexican President Vicente Fox is standing by his comparison of Donald Trump to Adolf Hitler, saying the Republican presidential front-runner "believes in the white supremacy."

Fox says Trump "lies and lies and lies and uses whatever is convenient for him without any attention to facts."

Trump has angered many Mexicans for his campaign rhetoric denigrating some immigrants as "rapists" who bring crime and drugs to the United States. He has repeatedly promised to build a wall along the entire U.S.-Mexico border.

Fox is calling on Americans to "wake up" from "this Republican nightmare." He made the remarks Wednesday in an interview taped for Fox News Channel's "Hannity."

He says Trump's campaign "worries me for America, it worries me for the world, it worries me for Mexico."