In a Politico article headlined "History according to Glenn Beck," reporter Michael Calderone asked history professors what they thought of Beck's documentary on “the atrocities of Adolf Hitler, Joseph Stalin, Mao Zedong, and Ernesto 'Che' Guevara - 'the true unseen history of Marxism, progressivism and communism; as Beck described it.”

In the article, Clemson professor Steven Marks called Beck's assertions “a complete lie”:

Clemson University professor Steven Marks, author of “How Russia Shaped the Modern World,” said that while Beck doesn't explicitly tie the left-wing totalitarian regimes of the past to contemporary liberals, that's what “he's hinting at here.”

“No one in their right mind is going to defend Stalin or Mao or Che Guevara,” Marks said. “The implication is that this is what's going to happen if Democrats get their way. This is just a complete lie.”

Boston College professor Alan Wolfe said Beck “lives in a complete alternative universe”:

Alan Wolfe, director of the Boisi Center for Religion and American Life at Boston College, said that the film not only isn't accurate, but that Beck “lives in a complete alternative universe.”

As an example, he said, Beck mentions how the Nazis supported programs like universal health care as evidence that their ideology may have more to do with the left than the totalitarian right.

Nazi Germany was “not evil because of their economic program,” said Wolfe, which he noted included a few programs designed to promote public health.

“It was evil,” he said, " because it aimed at the extermination of European Jewry."