rioters would have killed government officials if they found them. >> can i speak to pelosi? yeah, we're coming to [bleep] oh, mike pence, we're coming for you to [bleep] trader. >> but the capital isn't an easy building to navigate. >> nancy pelosi! nancy! >> guess what? america showed up! >> the capital is 175,000 square feet. miles of hallways, 600 offices, faced from the west, the senate is on the left. the house of representatives is on the right. the dome rotunda is in the middle. supported by room of arches known as the crypt. throughout the massive complex, congressional staffers take cover. they barricade the doors. vice president mike pence is escorted to safety with an aid carrying codes to nuclear weapons.