George Conway, the husband of White House adviser Kellyanne Conway and a fierce critic of President Trump, penned an op-ed in The Washington Post that calls Trump a "cancer on the presidency" and urged Congress to take action to remove him from office.

After 22 months, a redacted version of special counsel Robert Mueller’s Russia interference report was made available to the public. The report showed no evidence that Trump’s team “coordinated or conspired” with Russia, but many Democrats pointed out that Mueller identified 10 times where there was potential obstruction, and essentially left the next steps up to Congress.

Mueller wrote that Trump’s efforts to obstruct “were often carried out through one-on-one meetings in which the President sought to use his official power outside of usual channels.”

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He continued, “The President's efforts to influence the investigation were mostly unsuccessful, but that is largely because the persons who surrounded the President declined to carry out orders or accede to his requests."

Trump's team late Thursday appeared to take a wait-and-see approach on how the public absorbed the findings. Rudy Giuliani, Trump's lawyer, seemed to be in no particular hurry to release a 45-page rebuttal when asked about it on CNN. The White House claimed total victory and vindication for the president

Conway, who has clashed publicly with the president before and questioned his mental fitness, barely touches collusion in his piece but highlighted the obstruction argument.

"Mueller couldn’t say, with any “confidence,” that the president of the United States is not a criminal. He said, stunningly, that “if we had confidence after a thorough investigation of the facts that the President clearly did not commit obstruction of justice, we would so state.” Mueller did not so state," Conway wrote.

He pointed out that even if Trump did not reach the threshold of criminality, he could still be impeached based on earlier precedent. He called on Congress to act to “excise” the cancer in the White House “without delay.”

There is no love lost between Trump and Conway. Trump has called Conway a “stone cold LOSER & husband from hell.”

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“George Conway, often referred to as Mr. Kellyanne Conway by those who know him, is VERY jealous of his wife’s success & angry that I, with her help, didn’t give him the job he so desperately wanted. I barely know him but just take a look, a stone cold LOSER & husband from hell!” Trump tweeted in March.

Andrew McCarthy, a former federal prosecutor, wrote in the New York Post that Trump could have simply shut down the investigation and assert executive privilege to “deny the special counsel access to key White House witnesses,” but he didn’t.

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“Most important, the special counsel found that there was no collusion between the Trump campaign and Russia, and that the president’s frustration wasn’t over fear of guilt — the typical motivation for obstruction — but that the investigation was undermining his ability to govern the country,” McCarthy wrote.