Key players to watch
The select committee has promised never-before-seen videotaped depositions from some of Trump's closest aides and family members after Ivanka Trump, Jared Kushner and Donald Trump Jr. all sat for interviews earlier this year.
Former White House chief of staff Mark Meadows -- who turned over thousands of text messages to the committee -- has been described by congressional sources as an "MVP" of the hearings, as his messages have provided somewhat of a roadmap for investigators.
![](https://s.abcnews.com/images/Politics/mark-meadows-file-gty-ml-220325_1648215157015_hpMain_2.jpg)
Click here for some key players to watch for as the panel kicks off a series of major public hearings.