NEW YORK — A military analyst for Fox News said Tuesday that he was quitting the network because he believed it had turned into a propaganda machine for President Donald Trump’s administration.

Ralph Peters, a retired U.S. Army officer, said he told Fox that he did not want his contributor contract renewed.

“Over my decade at Fox, I was long proud of the association,” Peters wrote in an email that was distributed to colleagues at Fox News, and first reported by BuzzFeed News. “Now I am ashamed.”

Fox said in a statement that Peters was entitled to his opinion, “despite the fact that he’s choosing to use it as a weapon in order to get attention.” Fox said it was proud of its opinion programming and prime-time hosts.

Peters said he believed Fox had “degenerated from providing a legitimate and much-needed outlet for conservative voices to a mere propaganda machine for a destructive and ethically ruinous administration.”

He criticized prime-time hosts for “profoundly dishonest assaults” on the FBI, the Justice Department, the courts, the intelligence community and special counsel Robert Mueller, who is conducting an investigation into the Trump administration’s dealings with Russia. He accused the network of “scaremongering” with lurid warnings of deep-state machinations.