Donald Trump has said he never read Adolf Hitler’s Mein Kampf and did not quote the Nazi dictator when he said illegal immigrants were “poisoning the blood of our country.”

In a presidential rally in Iowa on Tuesday, the Republican presidential hopeful also said: “They don’t like it when I said that,” and he went on: “I never read Mein Kampf. They said, ‘Oh, Hitler said that’ — in a much different way.”

Last week, Trump told The National Pulse, a conservative webcast, that immigrants on the southern border “is a very sad thing for our country.”

He said: “It’s poisoning the blood of our country. It’s so bad, and people are coming in with disease. People are coming in with every possible thing that you could have.”

At a rally in New Hampshire on Saturday, Trump said: “They poison mental institutions and prisons all over the world. Not just in South America. Not just the three or four countries we think about.”

“But all over the world they’re coming into our country, from Africa, from Asia.”

President Joe Biden’s re-election campaign has focused on Trump’s anti-immigrant rhetoric.

In a release on Tuesday, the Biden campaign said: “Donald Trump is parroting autocrats like Hitler and Mussolini, claiming that immigrants are ‘poisoning the blood of our country’ and calling his political enemies ‘vermin.'”

This is not the first time that the Republic front-runner has been accused of seeking inspiration from the Nazi dictator.

In a Vanity Fair article from September 1990, which has been widely cited in the wake of his latest remarks, his former wife claimed he used to keep a book of Hitler’s speeches in a cabinet by his bed.

The article said: “Ivana Trump told her lawyer Michael Kennedy that from time to time her husband reads a book of Hitler’s collected speeches, My New Order, which he keeps in a cabinet by his bed.”