Media reporter Joe Concha said the mainstream media is facing a "day of reckoning" after the release of Special Counsel Robert Mueller’s key findings -- including no evidence of collusion between the Trump campaign and Russia.

Attorney General William Barr on Sunday released the "principal conclusions" of Mueller's completed Russia probe in a four-page letter to lawmakers, which stated definitively that Mueller did not establish evidence that Trump's team or any associates of the Trump campaign had conspired with Russia to sway the 2016 election.

"Throughout these last 22 months, gossip was treated as gospel," Concha said on "Fox & Friends" Monday, arguing that reporters were all too willing to accept unverified claims from anonymous sources.

"This is a day of reckoning for our media like we haven't seen since the 2016 election, I would say maybe the worst day ever for our media," Concha added.

He noted that despite Mueller's findings, some Democratic lawmakers and some in the press have signaled that they aren't willing to move on from allegations of Trump-Russia collusion or obstruction of justice.

"We're hearing -- even yesterday and this morning -- this is the beginning of something else, the next chapter. You know why? Because it's good for ratings, and because people want to believe the worst about this president."

Watch the "Fox & Friends" segment above, and see Trump attorney Rudy Giuliani react below.

Strassel: Documents on FISA Warrants, Steele Dossier Must Be Released With Mueller Report

Mike Bloomberg Mocks Joe Biden, Beto O'Rourke for Repeated Apologizing

'Petty, Mean & Appalling': McDowell Blasts Trump's Continued Attacks on McCain