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President Trump impeached for historic second time, heightened security in Washington ahead of inauguration, and police search for far-right extremists within ranks.

House Democrats introduce article of impeachment against President Trump, more cities opening mass Covid vaccination centers, and U.S. Secret Service expands security plan for Biden inauguration.

Nation on alert ahead of President-elect Biden’s inauguration, President Trump’s impeachment trial could start next week, and ex-governor, former Michigan officials charged in Flint water crisis.

House Democrats prepare to make impeachment case, at least 20 suspected ringleaders charged in Capitol insurrection, and FBI, NYPD notified U.S.

Watch live coverage as the House of Representatives plans to vote on a resolution calling for Vice President Mike Pence to invoke the 25th Amendment to remove President Donald Trump before his term

President Trump defends remarks before Capitol riot as ‘totally appropriate,’ officials search for Capitol riot suspects, warn of new threats, and new study shows rise in Covid hospitalizations

Watch live coverage as members of the FBI and Justice Department provide updates on the investigation into the attack a pro-Trump mob executed at the U.S. Capitol.

House Speaker Nancy Pelosi called for President Trump's removal and called on Vice President Mike Pence to respond within 24 hours of the passage of the resolution.

A new FBI memo warned about the possibility of armed protests across all 50 state Capitols ahead of Inauguration Day.

Watch live coverage as the House of Representatives meets for a pro forma session as Democrats consider bringing articles of impeachment against President Trump.

Watch live coverage as the House votes to impeach President Donald Trump for a second time, citing his role in inciting a deadly riot by his supporters at the U.S.

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Many Republicans allied with President Donald Trump are continuing to push baseless widespread voter fraud claims even after the Capitol riots were incited by the same lies.

NBC News' Stephanie Ruhle reports on the different businesses and banks that have announced they will pull their services from President Trump's business entities as his term comes to an end.

House Democrats are planning to vote Tuesday on a measure calling on Vice President Pence to invoke the 25th Amendment.

President Donald Trump has become the first president to be impeached twice as the House passed the vote 232 to 197, with 10 Republicans voting against the president.

FBI Washington Field Office ADIC, Steven D'Antuono said the “brutality” at the U.S.

In his first remarks to reporters since the riot at the Capitol, President Trump criticized Democrats for their plans to move forward with impeachment and urged his supporters not to engage in

Watch live coverage as President-elect Biden delivers remarks on the economy, public health and his plans to combat the Covid-19 pandemic.

Senior Democrats suggest House Speaker Nancy Pelosi could complete House impeachment but delay sending the article to the Senate for trial, which would give the Biden administration breathing room.

Watch live coverage as House Speaker Nancy Pelosi holds her weekly news conference days after the House voted to impeach President Trump for the second time. » Subscribe to NBC News: nbcnews.

Local, state and federal law enforcement, plus thousands of National Guard troops are part of a massive security operation for Inauguration Day.

Military trucks are blocking off roads two and three blocks from the U.S. Capitol, closing off the area to any vehicular traffic.

The House impeached President Trump for the second time in just over a year, making him the first president to ever be impeached twice.

House Majority Leader Steny Hoyer delivered closing remarks before the House votes on the second impeachment of President Trump.