▶ Watch Video: Jan. 6 committee aims to hold another public hearing in late September

The House committee investigating the Jan. 6 attack on the U.S. Capitol will hold a public hearing on Sept. 28 at 1 p.m., the committee announced Wednesday. 

Rep. Bennie Thompson told CBS News on Monday that the committee is still discussing whether to have witnesses for the hearing. 

“We have a lot of information that we have collected over the last year that we’ve not shown the public. And we believe that that information on its own is significant enough for a hearing,” Thompson said. 

The committee held a series of public hearings earlier this summer that combined never-before-seen footage from Jan. 6, video testimony from some of the people who were in former President Donald Trump’s inner circle and in-person witness testimony. 

The hearings sought to tie Trump to the coordination of the attack and shed light on plans devised by him and members of his inner circle desgined to overturn the 2020 elections results. 

A video of former President Donald Trump played on a screen during a hearing of the Select Committee to Investigate the January 6th Attack on the US Capitol in Washington, D.C., US, on Thursday, July 21, 2022. Trump’s 187 minutes of inaction as an armed mob attacked the US Capitol will be the focus of the second prime-time hearing by the House committee investigating the Jan. 6, 2021 insurrection. Photographer: Al Drago/Bloomberg via Getty Images

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Thompson said earlier this month that the committee plans to put together an interim report two weeks after the proposed late September hearing, in mid-October, and will finalize the report before the end of the year. 

That would take them past the November midterm elections, and the committee’s two Republicans, Liz Cheney and Adam Kinzinger, are both leaving Congress in January. Cheney lost the Republican primary in Wyoming to a Trump-backed challenger. Kinzinger decided not to run for reelection. 

If Republicans take control of the House in January, it’s expected that the select committee will be disbanded. While Republicans were entitled to have five members on what was meant to be a 12-person committee, House Speaker Nancy Pelosi rejected two of Minority Leader Kevin McCarthy’s suggested members, as they were among the 139 House Republicans who voted to overturn the election results on Jan. 6. As a result, McCarthy refused to put any more Republicans on the committee, with Pelosi asking Cheney and Kinzinger — who were among the 10 House GOP members who voted to impeach Trump — to be on what ended up being a 9-person committee comprised of seven Democrats and the two Republicans. 

Since its creation last year, the committee has issued over 100 subpoenas and gone over hundreds of documents related to the attack. 

Since the last hearing was held on July 16, the committee said it has had conversations with the Justice Department about a scheme allegedly cooked up by Trump’s allies to put forward alternate electors supporting him in seven battleground states that President Joe Biden won.

On July 22, a federal jury found former Trump strategist Steve Bannon guilty of two counts of criminal contempt for refusing to comply with a subpoena to appear before the Jan. 6 committee. He faces up to two years in prison. Bannon has said he was honoring executive privilege concerns raised by Trump, although Kristin Amerling, one of the two witnesses called by prosecutors, said the committee never received notice from Trump about this obstacle to deposing Bannon, and the committee would not have recognized such a claim anyway.

Rep. Jamie Raskin, a member of the committee, told “Face the Nation” earlier this month that the committee is still hoping former Vice President Mike Pence will appear voluntarily before the panel. The committee’s public hearings focused in part on Trump and his allies’ attempts to pressure Pence to reject the Electoral College votes on Jan. 6 during the joint session of Congress.

“Vice President Pence was the target of Donald Trump’s wrath and fury and effort to overthrow the election on Jan. 6. The whole idea was to get Pence to step outside his constitutional role, and then to declare unilateral lawless powers to reject Electoral College votes from the states,” Raskin said.

Pence ultimately rejected those efforts and gaveled in Mr. Biden as the winner of the 2020 election after 3:40 a.m. on Jan. 7. Pence said at a New Hampshire political event in August that he’d “consider” testifying before the committee. 

The committee has also formally requested that former House Speaker Newt Gingrich, who was also an adviser to Trump, speak with them. The committee cited emails he allegedly exchanged with Trump’s senior advisers, including Jared Kushner and Jason Miller. “Evidence shows that Mr. Gingrich pushed messages designed to incite anger among voters even after Georgia election officials had faced intimidation and threats of violence,” the committee said in its request for Gingrich to appear.

The committee’s public hearing on June 21 examined threats made to state and local elections officials, including in Georgia. The Fulton County District Attorney’s Office has launched a criminal investigation into whether Trump and his allies interfered with Georgia’s election in 2020. Trump’s personal attorney, Rudy Giuliani, testified for six hours before a Fulton County grand jury in August related to that investigation. 

Ellis Kim contributed to this report.