Democrats ‘stunned’ by revelations in Mueller letter — and they’re seriously considering impeachment: WaPo reporter
Bill Barr during his Senate confirmation hearing. (Screenshot)

The Washington Post's Robert Costa told MSNBC Wednesday that Democrats were "stunned" by Robert Mueller's letter calling out Attorney General William Barr for mischaracterizing the findings of the Russia probe -- and said that "privately" they were considering all avenues of redress, including impeachment.

"What I’m hearing is that Democrats are stunned by what they saw in the Mueller letter, it's something they were not aware of," said Costa. "Are they calling for his impeachment yet? No. But privately and now some publicly some senators, top Democrats in the party, are saying we can’t rule out anything at this point."

"They have to hear from the attorney general," he went on. "They don’t just want to hear answers about how he handled the report, they want reassurances about his conduct about his integrity. Expect this to be a very tough hearing."

Costa added that politics was a consideration as well.

"Some of the people sitting up there, they're running for the White House and have to impress their party," he noted. "They know tough shots are sometimes the way to do so."

Watch the video below.