House Speaker Nancy Pelosi of Calif., with impeachment managers Rep. Eric Swalwell, D-Calif., and Rep. Joe Neguse, D-Colo., speaks to members of the media during a news conference on Capitol Hill in Washington, after the U.S. Senate voted not guilty, to acquit former President Donald Trump of inciting riot at U.S. Capitol, ending impeachment trial, Saturday, Feb. 13, 2021. (AP Photo / Manuel Balce Ceneta)

House Speaker Nancy Pelosi said Monday that Congress will establish an independent, Sept. 11-style commission to look into the deadly insurrection that took place at the U.S. Capitol.

In this Wednesday, July 17, 2019 file photo, President Donald Trump gestures to the crowd as he arrives to speak at a campaign rally at Williams Arena in Greenville, N.C. (AP Photo / Carolyn Kaster, File)

Acquitted by the Senate of inciting last month’s U.S. Capitol insurrection, former President Donald Trump faces more fallout from the unrest, including a lawsuit from a congressman Tuesday. But his biggest legal problems might be the ones that go much further back.

President Donald Trump gestures to supporters en route to his Mar-a-Lago Florida Resort on Wednesday, Jan. 20, 2021, in West Palm Beach, Fla. (AP Photo / Lynne Sladky)

Plus: Reaction to Trump’s acquittal on ‘Chicago Tonight’

Now acquitted in his second Senate impeachment trial, Donald Trump is preparing for the next phase of his post-presidency life. But after being barred from Twitter, the former president lacks the social media bullhorn that fueled his political rise.

In this Jan. 6, 2021, file photo President Donald Trump speaks during a rally protesting the electoral college certification of Joe Biden as President in Washington. (AP Photo / Evan Vucci, File)
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Donald Trump’s acquittal at his second impeachment trial may not be the final word on whether he’s to blame for the deadly Capitol riot. The next step for the former president could be the courts. 

Senate Minority Leader Mitch McConnell of Kentucky, walk in the Capitol as the Senate convenes in a rare weekend session for final arguments in the second impeachment trial of former President Donald Trump, at the Capitol in Washington, Saturday, Feb. 13, 2021. (AP Photo / J. Scott Applewhite)

Donald Trump was acquitted Saturday of inciting the horrific attack on the U.S. Capitol, concluding a historic impeachment trial that spared him the first-ever conviction of a current or former U.S. president but exposed the fragility of America’s democratic traditions.

An image taken from a video of President Donald Trump posted on the official White House Twitter account on Jan. 13, 2021 — the day he was impeached for a second time and a week after deadly riots at the U.S. Capitol. (WTTW News via @WhiteHouse)

Impeachment managers and Donald Trump’s defense wrap up the former president’s second impeachment trial. U.S. Sens. Dick Durbin and Tammy Duckworth continue to push President Joe Biden to keep Chicago’s top federal prosecutor. Gov. J.B. Pritzker says no new taxes in his new budget. 

In this image from video, Bruce Castor, an attorney for former President Donald Trump, speaks during the second impeachment trial of Trump in the Senate at the U.S. Capitol in Washington, Friday, Feb. 12, 2021. (Senate Television via AP)
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The defense team vigorously denied on Friday that Donald Trump had incited the deadly riot and said his encouragement of followers to “fight like hell” at a rally that preceded it was routine political speech. 

In this image from video, House impeachment manager Rep. Jamie Raskin, D-Md., speaks during the second impeachment trial of former President Donald Trump in the Senate at the U.S. Capitol in Washington, Thursday, Feb. 11, 2021. (Senate Television via AP)
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Dire harm from Donald Trump’s false and violent incitements will vex American democracy long into the future unless the Senate convicts him of impeachment and bars him from future office, House prosecutors insisted Thursday.

In this image from video, security video is shown to senators as House impeachment manager Rep. Eric Swalwell, D-Calif., speaks during the second impeachment trial of former President Donald Trump in the Senate at the U.S. Capitol in Washington, Wednesday, Feb. 10, 2021. (Senate Television via AP)
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Prosecutors unveiled chilling new security video in Donald Trump’s impeachment trial on Wednesday, showing the mob of rioters breaking into the Capitol, smashing windows and doors and searching menacingly for Vice President Mike Pence and House Speaker Nancy Pelosi as overwhelmed police begged on their radios for help.

A mob breaches the U.S. Capitol on Jan. 6, 2021. (WTTW News via CNN)

Powerful video evidence is presented at former President Donald Trump’s second impeachment trial. Our politics team of Amanda Vinicky, Paris Schutz and Heather Cherone takes on that story and more in this week’s roundtable.

Billboard trucks parked on the National Mall near of the U.S. Capitol during the impeachment trial of former President Donald Trump in Washington, Tuesday, Feb. 9, 2021. (AP Photo / Jose Luis Magana)

Plus: Congress members react to impeachment trial on ‘Chicago Tonight’

Donald Trump’s historic second impeachment trial opened Tuesday with graphic video showing the former president whipping up a rally crowd to march to the Capitol and “fight like hell” against his reelection defeat, followed by images of the deadly attack on Congress  that came soon after.

In this Jan. 6, 2021, file photo people shelter in the House gallery as rioters try to break into the House Chamber at the U.S. Capitol. (AP Photo / Andrew Harnik, File)

Plus: Previewing the trial on ‘Chicago Tonight’

Lawyers for Donald Trump on Monday blasted the impeachment case against him as an act of “political theater” and accused House Democrats on the eve of the former president’s trial of exploiting the chaos and trauma of last month’s Capitol riot for their party’s gain.

In this Jan. 6, 2021, file photo President Donald Trump speaks during a rally protesting the electoral college certification of Joe Biden as President in Washington. (AP Photo / Evan Vucci, File)

Arguments begin Tuesday in the impeachment trial of Donald Trump on allegations that he incited the violent mob that stormed the U.S. Capitol on Jan. 6. 

In this Wednesday, Jan. 20, 2021, file photo, President Donald Trump waves as he boards Marine One on the South Lawn of the White House, in Washington, en route to his Mar-a-Lago Florida Resort. (AP Photo / Alex Brandon, File)

The request from House impeachment managers does not require Donald Trump to appear — though the Senate could later subpoena him — but it does warn that any refusal to testify could be used at trial to support arguments for a conviction. 

In this Jan. 6, 2021, file photo with the White House in the background, President Donald Trump speaks at a rally in Washington. (AP Photo / Jacquelyn Martin, File)
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Democrats marched the impeachment case against Donald Trump to the Senate on Monday night for the start of his historic trial, but Republican senators were easing off their criticism of the former president and shunning calls to convict him over the deadly siege at the U.S. Capitol.

On the first full day of Democratic control, Senate Majority Leader Chuck Schumer, D-N.Y., walks to the chamber after meeting with new senators from his caucus, at the Capitol in Washington, Thursday, Jan. 21, 2021. (AP Photo/J. Scott Applewhite)

Opening arguments in the Senate impeachment trial for Donald Trump over the Capitol riot will begin the week of Feb. 8, the first time a former president will face such charges after leaving office.