Timeline of National Guard Deployment to Capitol

On the day of the Capitol riot on Jan. 6, the first National Guard members arrived to assist at about 5:40 p.m. By then, most of the violence had subsided.

In the critical minutes before rioters had breached the Capitol building around 2 p.m., the chief of the U.S. Capitol Police force and the mayor of Washington, D.C., put out urgent requests for guard backup. But it took more than an hour to get formal approval for their deployment, and then nearly three more hours for the first guard reinforcements...