Former Ambassador Joseph Wilson, whose CIA agent wife's cover was leaked in 2003, blasted President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Friday as "vile and despicable" after he pardoned I. Lewis "Scooter" Libby.

In a statement obtained by HuffPost, Wilson called Trump an "utterly unacceptable" leader, and accused him of allowing individuals who put U.S. national security at risk to run free.

"Mr. Trump is willing to allow people to violate the essence of our defense structure, our national security, our intelligence apparatus and essentially get away with it," Wilson said.

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"Finally, as to Trump, he is a vile and despicable individual," he later added. "He represents repudiation of everything that my generation has worked to secure for our nation and its people. I find him utterly unacceptable as president."

Wilson, a former ambassador to Gabon, is married to Valerie Plame, the ex-CIA officer whose career with the agency was upended in 2003 when her identity was leaked to the press.

That same year, Wilson had authored an op-ed in The New York Times that called into question the George W. Bush administration's determination that former Iraqi leader Saddam Hussein had sought to obtain weapons of mass destruction.

The leak of Plame's identity as a CIA agent was widely seen as political retribution for Wilson's claims.

Libby, the chief of staff to former Vice President Dick Cheney, was convicted in 2007 of perjury and obstruction of justice related to the investigation into the leak of Plame's identity.

He was originally sentenced to 30 months in prison and was fined $250,000, but was ultimately spared jail time when then-President George W. Bush commuted his sentence.

Trump pardoned Libby on Friday, saying that, while he has never met him, he had "heard that he has been treated unfairly."

“Hopefully, this full pardon will help rectify a very sad portion of his life,” Trump said.