CNN came under fire on Thursday when its in-house fact-checker reported President Trump “falsely claims former FBI Director James Comey admitted to leaking” when the liberal network had reported otherwise, and Comey, in fact, had admitted to leaking.

Trump said during Thursday’s post-acquittal remarks that Sen. Chuck Grassley, R-Iowa, has a “voice that scares people” and he “thinks” Grassley was the person who initially got ex-FBI Director James Comey to admit he leaked to the press.

FOX NEWS' STATE OF THE UNION RATINGS MORE THAN DOUBLE MSNBC AND CNN COMBINED, TOP BROADCAST NETS

“I think that was when Comey announced that he was leaking,” Trump said, but CNN’s fact-checker did not mention the word “think,” instead declaring that Trump “falsely claimed that, in an exchange with Sen. Chuck Grassley at a committee meeting, James Comey admitted to being a leaker.”

It turns out that Trump’s timeline was off by a few weeks and Comey was still lying about being a leaker when he was grilled by Grassley in May 2017. The lack of clarity agitated CNN producer-turned-Fourth Watch editor Steve Krakauer, who slammed his former employer for the gaffe in his media newsletter.

“When you take on the role of fact-checker, you have zero margin of error to be wrong yourself, or else the whole exercise becomes a charade. However, that's what happened today as CNN furiously fact-checked Trump's post-impeachment open mic afternoon,” Krakauer wrote, pointing to a tweet from CNN Politics’ verified Twitter account.

CNN RIDICULED FOR REPORT THAT TRUMP WON’T APOLOGIZE AFTER IMPEACHMENT ACQUITTAL

Krakauer noted that “CNN's own reporting shows that James Comey has admitted to leaking, which he was reprimanded for in the IG report.”

CNN reported in June 2017 that Comey testified “that he orchestrated the leak of accounts of conversations with President Donald Trump because he thought it might lead to the appointment of a special prosecutor to lead the Russia investigation.”

CNN eventually issued a "clarification" to its fact-checker's article on Thursday “to make clear that is about what Comey said to Grassley” but CNN never deleted the inaccurate tweet that was used to promote the now-clarified story.

“That's unacceptable for a news organization - particularly one that spends so much energy conducting fact-checks as part of their antagonistic relationship with the White House,” Krakauer wrote.

CNN’S CHRIS CUOMO MOCKED AFTER ATTEMPT TO DISPROVE TRUMP’S PHONE THEORY WITH CALL TO MOM FAILS

Krakauer wasn’t the only person to mock CNN for the situation, and its tweet was hit with an onslaught of criticism:

CLICK HERE TO GET THE FOX NEWS APP