Here's what Steve Bannon accidentally admitted during his congressional testimony

A report from Axios says that former White House chief strategist Stephen Bannon accidentally slipped up in his testimony before the House Intelligence Committee Tuesday.

Here's what he said:

Bannon had told lawmakers that he was not going to testify about his time as chief strategist at the White House, but then spoke about conversations he had with Reince Priebus, Sean Spicer and legal spokesman Mark Corallo about the controversial Trump Tower meeting with Russians.

Although the testimony made during a closed-door meeting, four sources told Axios about the flub.

The meeting between Donald Trump Jr. and numerous Russians is the focus of the investigation into alleged collusion between the Russian government and the Trump campaign in the 2016 election.

Trump Jr. admitted in emails disclosed online that he sought out the meeting hoping to obtain damaging emails hacked from Hillary Clinton, and he was told that the Russian government was the source.

Bannon angered the president and his allies when he called the meeting "treasonous" in a quote published in "Fire and Fury: Inside the Trump White House," the controversial book about the Trump administration.

“Even if you thought that this was not treasonous, or unpatriotic, or bad s***, and I happen to think it is all of that, you should have called the FBI immediately,” he is quoted as saying.

On Tuesday other details emerged from Bannon's testimony, including that describing the fury of the lawmakers as Bannon refused to answer certain questions.

Here's a Fox News video about the testimony: