Anderson Cooper got fed up with Donald Trump supporters making excuses for the president's decisions on Friday night.

Cooper was talking to CNN contributor and Trump advocate Jeffrey Lord last night, asking for his opinion on reports the president called former FBI Director James Comey a “nut job” to Russian officials in the White House.

Lord quickly dismissed the question and continued to show his unconditional support for the president.

“I don’t care what he says to the Russians. I mean, he’s the president of the United States. If he wants to say that, if Barack Obama wants to say whatever, if George Bush says I looking in his eyes…”

Cooper, visibly annoyed, interrupted: “If he took a dump on his desk, you would defend it.”

Although Lord laughed at Cooper's word vomit, some CNN viewers wrote on Twitter that they thought the comment was pretty unprofessional for a CNN host.

“And this is supposed to be one of the best journalists in the US? If so, we are all seriously f**ked,” one user tweeted.

Cooper later apologized tweeting: “I regret the crude sentence I spoke earlier tonight and followed it up by apologizing on air. It was unprofessional. I am genuinely sorry.”

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