Bannon 'slipped up' during hearing -- and revealed inside information about Trump-Russia meeting: report
Steve Bannon and Donald Trump (Composite / RawStory)

Former Trump political strategist Steve Bannon reportedly offered new details about his conversations with fellow Trump administration officials about Donald Trump Jr,'s 2016 meeting with Russian intelligence officials during his testimony before the House Intelligence Committee on Tuesday.

Sources tell Axios that Bannon "made one conspicuous slip up" during his testimony this week where he "admitted that he'd had conversations with Reince Priebus, Sean Spicer and legal spokesman Mark Corallo about Don Junior's infamous meeting with the Russians in Trump Tower in June 2016."

This was a key mistake, and sources say that both Republicans and Democrats hammered Bannon for admitting to having these conversations during his time in the White House and then quickly clamming up when asked followup questions about them.

Rep. Trey Gowdy (R-SC) was particularly aggressive with Bannon and grilled him about his description of Donald Trump Jr.'s meeting with Russian officials in Trump Tower as "treasonous."

"Gowdy asked Bannon whether he would consider it treason for somebody close to him to approach Wikileaks' Julian Assange to get opposition research on Hillary Clinton," writes Axios reporter Jonathan Swan. "Bannon replied that such a scenario would be bad judgment. Then Gowdy produced emails from a Cambridge Analytica employee — the Trump campaign data firm closely affiliated with Bannon — boasting of just such contacts with Assange."