Top lawmakers say the Capitol Police Board, which is beholden to House and Senate leaders, needs significant changes after the shocking security failures of Jan. 6.
Former Capitol security officials gave sometimes conflicting accounts in the first high-profile public hearing on the attack by a pro-Trump mob.
A hearing on Tuesday will feature the testimony of the top two security officials at the Capitol on Jan. 6, who have since resigned, as well as police officials who responded to the riot.
As violence grew out of control on Jan. 6, the head of the Capitol Police made an urgent request for the National Guard. It took nearly two hours to be approved.
The acting chief of the Capitol Police told lawmakers that the department knew days ahead of time of the risk of violence targeting lawmakers but was unprepared when the mob attacked on Jan. 6.
The rejected request was another key breakdown in the security failure ahead of the violence at the Capitol.
The House and Senate sergeants-at-arms, who have resigned, now face questions about why they failed to do more to deter the Trump loyalists who swarmed the Capitol last week.