Col. Ralph Peters was a Fox News military analyst for the network for many years. 

But now here is speaking out against the network and saying it is a "destructive propaganda machine."

Peters went on CNN's Anderson Cooper's show and laid into Fox News and how they are in bed with Donald Trump. 

Peters resigned from Fox News and said that, "For years, I was glad to be associated with Fox. It was a legitimate conservative and libertarian outlet, and a necessary one," he said. "But with the rise of Donald Trump, Fox did become a destructive propaganda machine, and I don't do propaganda for anyone."

Peters said he believes Putin has a "grip" on Trump. He said "the Mueller investigation is the most important of my lifetime," i.e. bigger than Watergate. And he said the Fox hosts who constantly attack Mueller are "doing it for ratings and profit" and "doing a great grave disservice to our country."

Cooper asked: Do those aforementioned hosts "believe the stuff they are saying" about the FBI, "deep state," etc?

Peters: "I suspect Hannity really believes it. The others are smarter. They know what they’re doing. It's bewildering to me. I mean, I wanted to just cry out and say, 'How can you do this?' How can you lie to our country? How can you knowingly attack our Constitution, the bedrock of our system of government, the bedrock of our country?"

Fox News released a statement about Peters and say that they still stand by it. “Ralph Peters is entitled to his opinion despite the fact that he’s choosing to use it as a weapon in order to gain attention,” the network said in a statement to Mediaite. “We are extremely proud of our top-rated primetime hosts and all of our opinion programming.”

H/T Brian Stelter