Who is Cassidy Hutchinson, the former Meadows aide testifying on Jan. 6?

Cassidy Hutchinson on Tuesday will appear before the House committee investigating the Jan. 6 riot at the U.S. Capitol in a last-minute session convened to hear new evidence.

Hutchinson served as a special assistant to former President Trump’s chief of staff Mark Meadows, and her appearance is a big get for the committee — she will be the first White House employee to publicly testify.