The first hearing, set for June 9, will be a broad overview of the panel’s 10-month investigation and set the stage for subsequent hearings, sources tell CNN

The first hearing, set for June 9, will be a broad overview of the panel’s 10-month investigation and set the stage for subsequent hearings, which are expected to cover certain topics or themes including what President Donald Trump was doing as the riot unfolded, the pushing of baseless election fraud claims that motivated rioters, how law enforcement responded to the attack, and the organizing and financing behind the January 6 rallies, sources tell CNN.

Multiple people who have been interviewed by the committee tell CNN they expect to be called as first-hand fact witnesses to the events on or around January 6, though none of them say they’ve been notified by the committee yet. Those people include former members of the Trump administration, former White House officials and rally planners.

At least one fact witness who has been deposed by the committee behind closed doors already told the panel they will refuse to testify publicly if asked, according to a source familiar with the matter. Other witnesses, including rally organizers, have indicated they may be willing to participate in public hearings under a certain set of ground rules, two additional sources familiar with the matter told CNN.

Neither Rosen nor Donoghue have been asked to testify at a public hearing, according to sources familiar with the matter.

It’s unclear if the committee will ask Pence to appear for public hearings, but two people familiar with the investigation say they would be very surprised if he testified.

“We understand the interest in talking to the vice president, and we haven’t made decisions at this point,” committee member Democratic Rep. Pete Aguilar of California told CNN’s John Berman on Tuesday morning. “But I can tell you that we continue to receive ample evidence that will help us in this discussion.

“There’s no effort on the part of the committee to get him to come in” Thompson said.

Former President Trump is also not expected to be asked to testify, according to two sources familiar with the investigation. Both sources indicated that they did not think Trump would cooperate in a productive manner, and doubt that he would agree to testify under oath in a public setting.

All-day meetings to sort through mountains of evidence

Planning sessions have become so demanding, committee staffers have been locked in all-day meetings to sort through key details including witnesses and hearing topics. Some of the panel’s nine members have instructed their personal offices to clear their schedules for the whole month of June.

One source close to the committee told CNN that the panel has drawn on experiences from Trump’s two impeachment proceedings. Those hearings have served as a model of both what to do and not to do.

Hearings will feature different teams’ work

The June hearings will incorporate the work of the panel’s investigative teams, which have been designated different colors.

One of those teams, the gold team, has examined efforts by Trump and his allies to pressure Justice Department officials, as well as those at the state level, to overturn the results of the election. Thompson told CNN in January that the hearings would likely include testimony from state election officials, as well as former top members of the Trump Justice Department.

“They will be a combination of exhibits, staff testimony and outside witnesses,” Thompson told CNN last week. “Some of them will be people that people have not heard from before, and I think their testimony will be on point as to why this investigation was so important.”

The main goal of the committee in holding the hearings is to show that even though Trump was told repeatedly there was no election fraud, he continued to push forward with his campaign to overturn the election.

Looming over the June hearings will be a number of questions. Chief among them is whether the panel intends to make criminal referrals to the Justice Department, either for Trump or anyone else.

Asked by CNN’s Berman on Tuesday if he believes Trump’s inaction during the riot constitutes a dereliction of his duty as commander in chief, Aguilar said that he did.

“Yes. I think that the president had every opportunity to walk into the press room, to tweet, to talk to the American public, and to tell these insurrectionists to go home, to tell them we’re going to have a peaceful transition of power,” Aguilar told Berman. “That’s a hallmark of democracy. And each and every step of the way he chose not to do that.”