Harvard Law professor Alan Dershowitz said on Monday on Fox and Friends that comparing illegal immigrant detention centers to Nazi death camps is a form of “holocaust denial.”

Dershowitz’s comments come after ex-CIA chief Michael Hayden tweeted a photo of Auschwitz Saturday and doubled down on the tweet while appearing on CNN’s New Day Monday morning.

This is Birkenau. Then Germany. Now Poland. NO ONE who now walks through that portal on that siding can casually believe that civilized behavior is guaranteed. pic.twitter.com/T1wLka18Vf

— Gen Michael Hayden (@GenMhayden) June 16, 2018

“Michael Hayden is a great man. He was a great public servant,” Dershowitz said on Fox News. “But I think making comparisons to death camps and concentration camps is a form of holocaust denial.”

Dershowitz also cautioned President Donald Trump against continuing with the administration’s current policy on illegal immigration and urged the commander-in-chief to step in.

“President Trump, you know, I’ve been defending your civil liberties and will continue to do so on this show but you have to end this policy of separating parents from children,” he continued. “Not because of the parents but because of the children. It imposes a trauma on the children. It’s just unacceptable. It’s just not proper.”

“Mr. President, it just has to stop,” Dershowitz concluded. “There are better ways of doing this. You’re better than this. The American people are better than this. The American government is better than this. So I implore you to stop it now. Then we can deal with the ways of focusing on this serious problem of immigration.”

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