House Speaker Nancy Pelosi

What do you call the people who violently stormed the Capitol on Jan. 6? Rioters? Insurrectionists? Terrorists? Since the attack, House Speaker Nancy Pelosi has used all three labels.

Linda Sarsour, a Muslim, Palestinian American activist with a huge social media following, tweeted, "This is domestic terrorism. Period," and Republican Rep. Nancy Mace from South Carolina also used the label "domestic terrorist" in a tweet.

One week after a violent mob breached the U.S. Capitol, threatened lawmakers and forced evacuations, members returned to the House floor. What followed was an emotional, and often angry, debate about recrimination for the president who many argued incited the riot that resulted in five dead.

Updated 5:45 p.m. ET

With nine days left before President Trump's term comes to an end, the House of Representatives is forging ahead with plans to try to remove the president from office over his role in his supporters' violent attack last week on the U.S. Capitol.

The former chief of U.S. Capitol Police says security officials at the House and Senate rebuffed his early requests to call in the National Guard ahead of a demonstration in support of President Trump that turned into a deadly attack on Congress.

Updated at 9:41 p.m. ET

Pennsylvania's Pat Toomey is the second Republican U.S. senator to call for President Trump's resignation in the wake of Wednesday's attack by Trump supporters on the U.S. Capitol, as House Democrats developed their plans to impeach the president.

Toomey on Sunday joined his Senate colleague Lisa Murkowski, an Alaska Republican, in calling for Trump to resign.

Updated at 9 p.m. ET:

A day after an insurrection that overtook the U.S. Capitol, the Capitol's three top security officials resigned from their posts amid building pressure from lawmakers and others over failures that allowed the dramatic breach.

The House and Senate's top protocol officers and the U.S. Capitol Police chief are now all expected to be replaced following a series of resignations in the wake of the security failures.

The FBI and Washington, D.C., Metro police are asking the public for help identifying some of the people involved in assaults, break-ins and vandalism at the U.S. Capitol on Wednesday. The FBI is asking anyone with information to submit it here, along with any photos or video.

In a day filled with shocking images, one of the most startling was a mob of President Trump's supporters surging into the U.S. Capitol with relative ease.

Updated at 4 a.m. ET

Congress certified President-elect Joe Biden and Vice President-elect Kamala Harris' victory early on Thursday, the end of a long day and night marked by chaos and violence in Washington, D.C. Extremists emboldened by President Trump had sought to thwart the peaceful transfer of power that has been a hallmark of modern American history by staging a violent insurrection inside the U.S. Capitol.

Updated at 3:43 a.m. ET

Lawmakers on Wednesday blocked objections to President-elect Joe Biden's election win in Arizona and Pennsylvania Wednesday evening, paving the way for Congress to formalize Biden's victory.