WASHINGTON Like an iceberg that hides most of its mass beneath the surface, the House committee investigating the Jan. 6 attack on the Capitol incited by former President Donald Trump has quietly gathered far more information than its public announcements suggest.

Marc Short, a top aide to former Vice President Mike Pence , was subpoenaed weeks ago by the committee. It finally became public this week . And former White House chief of staff Mark Meadows, who last week said he would cooperate with the committee, on Tuesday announced through his lawyer that he would not and cited previously unknown collection of his cell phone logs by the committee as the reason.

While weve announced roughly 40 subpoenas, the select committee has heard from 275 witnesses, both individuals complying with subpoenas and those participating with our investigation voluntarily, a committee aide said on condition of anonymity. Weve taken in more than 30,000 pages of records, received hundreds of tips, and are making rapid progress in this phase of our investigation.

Norm Eisen, an Obama White House lawyer who worked with the House committee that prosecuted Trumps first impeachment, said the under-the-radar work makes sense. In the case of Marc Short, it appears that they quietly issued appropriate process, and hes been cooperating for weeks, he said. If theyd done it publicly, who knows what sort of threats and intimidation he might have received.