Beto O’Rourke, former Texas congressman and Democratic presidential hopeful, compared President Trump’s comments on immigration to language used in Nazi Germany at a campaign event in Iowa.

“When the president of the United States has called Mexican immigrants ‘rapists’ and ‘criminals.’ He then went on to call asylum seekers ‘animals’ and an ‘infestation,’” said O’Rourke.

“Now we would not be surprised if in the Third Reich other human beings were described as an infestation, as a cockroach or a pest that you would want to kill. But to do that in 2017 or ‘18 in the United States of America, doesn’t make sense,” added O’Rourke.

When he announced he was running for president in June 2015, Trump attacked Mexico for sending its worst people and turning America into a “dumping ground for everybody else’s problems.”

“When Mexico sends its people, they’re not sending their best. They’re not sending you. They’re not sending you. They’re sending people that have lots of problems, and they’re bringing those problems with us,” said Trump. “They’re bringing drugs. They’re bringing crime. They’re rapists. And some, I assume, are good people.”

Trump has denounced MS-13, which operates drug operations along the U.S. and Mexican border. In 2018, Trump called gang criminals entering the U.S. “animals." When it was claimed he had called all illegal immigrants "animals," he made clear that he was referring to members of MS-13.

Beto’s campaign announced Wednesday that it had raised $9.4 million in 18 days.