Who is Cassidy Hutchinson, who is expected to testify before the Jan. 6 committee Tuesday?

Video clips from her interviews have been featured by the panel during earlier hearings, but Tuesday will be the first time she offers live testimony at a public hearing. The details of Tuesday’s previously unscheduled hearing were unclear; the panel said in an announcement Monday that it would “present recently obtained evidence and receive witness testimony.”

Hutchinson was by Meadows’s side leading up to and during the Capitol attack and has told the committee of strategy sessions held between the White House and President Donald Trump’s allies in Congress about whether they should encourage “Stop the Steal” participants to march to the Capitol, and how to set up alternative slates of electors.

The Washington Post reported that she confirmed to the committee that at one point Meadows said Trump had indicated support for protesters who were shouting, “Hang Mike Pence!”

Videotaped testimony from Hutchinson was also central to allegations of pardon-hunting by Republican House members. The allegations were aired by the committee at Thursday’s hearing.

Hutchinson testified that she was involved with conversations about requests from Reps. Matt Gaetz (R-Fla.), Mo Brooks (R-Ala.), Andy Biggs (R-Ariz.), Louie Gohmert (R-Texas) and Scott Perry (R-Pa.), all of whom she said had sought a promise from the White House to be cleared in advance of any crimes they might be charged with. Perry had previously denied seeking a pardon, but Hutchinson insisted in her deposition that he had spoken to her directly about it.

Biggs also denied he sought a pardon. Gaetz tweeted last Thursday that the Jan. 6 committee is “an unconstitutional political sideshow” that is “siccing federal law enforcement on political opponents.”

According to a court filing in April, Hutchinson told congressional investigators that Meadows was warned before Jan. 6 about the threat of violence that day as supporters of Trump planned to mass at the U.S. Capitol.

Hutchinson recalled that Anthony Ornato, a senior Secret Service official who also held the role of a political adviser at the White House, “coming in and saying that we had intel reports saying that there could potentially be violence on the 6th. And Mr. Meadows said: All right. Let’s talk about it.”

Hutchinson added, “I’m not sure if he — what he did with that information internally.”

Those details were in a filing arguing that a federal court should reject Meadows’s claims of executive privilege and compel him to appear before the House Jan. 6 committee, which is continuing to build a case that Trump knowingly misled his followers about the election, and pressured Pence to break the law in the weeks and hours before the assault.

In what is viewed as a willingness to cooperate with the panel, Hutchinson changed attorneys just ahead of her testimony.

Her previous lawyer, Stefan Passantino, was a White House ethics lawyer early in Trump’s tenure. While Hutchinson’s new lawyer, Jody Hunt, is a longtime confidant of Jeff Sessions, the former Republican senator from Alabama who served as Trump’s first attorney general.

Hutchinson interned for House Minority Whip Steve Scalise (R-La.) and Sen. Ted Cruz (R-Tex.) before becoming a White House intern the summer before her senior year at Christopher Newport University in Newport News, Va.

After returning to college that fall, Hutchinson said being selected to work in the executive mansion brought tears to her eyes.

“As a first-generation college student, being selected to serve as an intern alongside some of the most intelligent and driven students from across the nation — many of whom attend top universities — was an honor and a tremendous growing experience,” she told her university in October 2018.

Devlin Barrett contributed to this report.