Trump tried to call Jan. 6 committee witness, Cheney says
Tuesday's hearing was the first this month, the seventh so far.
The House select committee investigating Jan. 6 used its seventh hearing Tuesday to focus on what it said was then-President Donald Trump "summoning the mob" to the Capitol, including extremist groups.
Here is how the hearing unfolded:
Reps. Murphy, Raskin to lead questioning
Reps. Stephanie Murphy, D-Fla., and Jamie Raskin, D-Md., will lead Tuesday's questioning, according to committee aides.
One focus of the hearing, aides said, will be the impact of a Twitter post sent by Trump in December 2020, which read: "Big protest in D.C. on January 6th. Be there, will be wild!"
"Today, we'll show how President Trump's tweet in the early hours of December 19th activated domestic extremist groups, and how some Members of Congress amplified that message, all leading to the attack on January 6th," Murphy said on Twitter.
Who will testify Tuesday?
An Ohio man who accused President Joe Biden, other Democrats, and the mainstream media of "treason" is set to testify in the public hearing this afternoon before the House committee investigating the Jan. 6 attack on the Capitol, according to a source familiar with the matter.
The hearing is expected to focus on the rise of radical extremism in the United States, and the source said one of the key witnesses will be Stephen Ayres of Warren, Ohio, who recently admitted to illegally entering the Capitol on Jan. 6, 2021.
A former spokesman for the Oath Keepers militia group, Jason Van Tatenhove, will also be testifying Tuesday, the source said.
-ABC News' Katherine Faulders and Mike Levine