What to expect from the second Jan. 6 committee hearing

An image of a mock gallows on the grounds of the U.S. Capitol on Jan. 6, 2021, is shown at a House select committee investigating the Jan. 6 attack on the U.S. Capitol hearing. (J. Scott Applewhite/AP)

Two panels of in-person witnesses will testify publicly before the House committee investigating the Jan. 6 insurrection at the U.S. Capitol on Monday as the panel continues making its case that former President Donald Trump was responsible for the deadly riot.

The committee announced Monday morning that its headliner witness, Bill Stepien, the campaign manager to former President Donald Trump, will no longer appear at today's hearing "due to a family emergency." The session will be delayed 30-45 minutes from its scheduled 10 a.m. start time.