Rates the former president charged agents far exceeded the government's per diem, sometimes exceeding $1,000 a night per room.
Rep. Zoe Lofgren says the new evidence the panel has received contradicts aspects of the Secret Service members' previous testimony.
"Their plan is to literally kill people. Please, please take this tip seriously," one tipster said in a warning relayed to the Secret Service ahead of the attack.
The House panel's hearing is expected to highlight Trump's "state of mind" and his central role in the multipart effort to overturn the 2020 election.
The far-right group's leader, Stewart Rhodes, allegedly had the phone number of a Secret Service agent.
The vice president suffered no injuries as a result of the incident.
Joseph Cuffari's office has launched a criminal probe into the missing texts related to the Jan. 6, 2021, attack on the Capitol.
In an “Insider” article, a former Secret Service agent went into detail about the racism that Michelle Obama endured as first lady.
Kim Cheatle, a veteran Secret Service official, will be the agency’s next director.
Staff and lawyers at the watchdog agency approved draft language critical of the Secret Service that never made it into the final report to Congress.