Washington (CNN) Former CIA and National Security Agency Director Michael Hayden criticized President Donald Trump's attack of CNN over the weekend, saying he could not believe a President was capable of "such an outrageous assault" on a free press or the First Amendment.

The retired United States Air Force four-star general, who is now is a CNN national security analyst, served under the past three administrations.

"If this is who we are or who we are becoming, I have wasted 40 years of my life," Hayden tweeted over the weekend. "Until now it was not possible for me to conceive of an American President capable of such an outrageous assault on truth, a free press or the first amendment."

If this is who we are or who we are becoming, I have wasted 40 years of my life. Until now it was not possible for me to conceive of an American President capable of such an outrageous assault on truth, a free press or the first amendment. — Gen Michael Hayden (@GenMhayden) November 26, 2017

Trump tweeted his approval of Fox News and condemnation for CNN International Saturday, saying the network poorly represents the nation and is untrustworthy to the outside world.

"Fox News is MUCH more important in the United States than CNN, but outside of the U.S., CNN International is still a major source of (Fake) news, and they represent our Nation to the WORLD very poorly," the President said.

.@FoxNews is MUCH more important in the United States than CNN, but outside of the U.S., CNN International is still a major source of (Fake) news, and they represent our Nation to the WORLD very poorly. The outside world does not see the truth from them! — Donald J. Trump (@realDonaldTrump) November 25, 2017

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