The letter notes the committee has reviewed evidence that "directly contradicts" previous claims by Republican lawmakers who said security footage from the days before January 6 shows "[t]here were no tours, no large groups, no one with MAGA hats on" of the US Capitol complex.

The committee is now looking for more information from Loudermilk about the purpose of the tour he led of the Capitol complex on January 5, 2021, and its participants.

"Based on our review of evidence in the Select Committee's possession, we believe you have information regarding a tour you led through parts of the Capitol complex on January 5, 2021," Chairman Bennie Thompson, a Democrat from Mississippi, and Vice Chairwoman Liz Cheney, a Republican from Wyoming, wrote in the letter.

"The foregoing information raises questions to which the Select Committee must seek answers.

But Sherrill didn't name any Republicans.

Sherrill told a virtual town hall on January 12, 2021, that "members of Congress who had groups coming through the Capitol that I saw on January 5th for reconnaissance for the next day." The congresswoman never provided specific details or named which member of Congress gave the tours -- even after widespread criticism from Republicans, demanding she provide evidence to back up her claim.

Several Republican members denied providing any such tours, and it was Loudermilk who filed an ethics complaint last year against Sherrill and 33 other Democrats, accusing them of making allegations about Republican-led reconnaissance tours without any evidence.

This type of conduct must not be tolerated," he wrote, urging the House Ethics Committee to "take quick and decisive action to ensure this never happens again."

A spokesperson for the House Ethics Committee declined to comment on the status of the Loudermilk ethics complaint.

In February, Davis also said a review of security footage from the Capitol complex prior to January 6, 2021 "does not support these repeated Democrat accusations about so-called 'reconnaissance' tours."

"We have reviewed the security footage from the Capitol Complex during the relevant period preceding January 6, 2021, and we know it does not support these repeated Democrat accusations about so-called 'reconnaissance' tours.