Former Mexican President Vicente Fox on Wednesday lambasted President Trump for the decision to rescind the Deferred Action for Childhood Arrivals (DACA) program that has benefitted more than 780,0000 of people who came to the U.S. illegally as children.

"Trump, you have failed America," Fox said in a video he tweeted. "Cancelling DACA, it is the worst action you have ever done against the ones that cannot defend themselves."

Fox called the move "cruel and heartless."

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"You are so mistaken," he said. "The future of any country is the minorities which will be majorities in a few years. You cannot stop the change, the progress, the future of that great nation."

He also tweeted about it.

.@realDonaldTrump ending DACA is on the top of the vilest acts you've pulled off. You're destroying the legacy of greater men before you. — Vicente Fox Quesada (@VicenteFoxQue) September 5, 2017

.@realDonaldTrump is it because TrumpCare failed, as your other "succesful" bills? Childish and futile actions to prove yourself worthy? — Vicente Fox Quesada (@VicenteFoxQue) September 5, 2017

Fox, who served as president of Mexico from 2000 until 2006, has often criticized Mr. Trump, even comparing him to Hitler last year and calling him a "crazy guy."