As inaugural security preparations intensified, House Democrats accelerated their push to force the ouster of President Donald Trump before his term officially ends, threatening to impeach him for a second time unless he resigns for encouraging the march that led to last Wednesday's assault on the U.S. Capitol.
Adding to concerns of more unrest after the deadly mob attack on the US Capitol last week, Acting Homeland Security Secretary Chad Wolf announced his resignation on Monday.
It is also why Ms Pelosi is pushing for the cabinet to enact the 25th amendment, which would remove Mr Trump from office immediately.
Organisers said the Democratic president-elect would use the occasion to foster national unity, faced by a country deeply divided over politics and hobbled by the coronavirus pandemic.
"Even if he isn't removed, impeachment can result in Trump being banned from holding any public office ever again", wrote Lamb.
The House could vote as early as mid-week.More news: Uganda bans social media ahead of critical vote
According to United States media, Muriel Bowser, Washington DC Mayor had already declared a 15 day public emergency following the pro-Trump demonstrations and swarming of the Capitol Hill on January 6.
The House plans to begin impeachment proceedings against the president this week if Pence doesn't act.
Trump, who has only nine days left in his term, could become the first US president to be impeached twice.
He was impeached in 2019 on allegations of abusing his position, but the Republican-controlled Senate cleared him of charges previous year.
President Donald Trump told reporters Tuesday at the White House that the prospect of impeachment is causing "tremendous anger" in the nation.
Few Republican lawmakers have so far publicly voiced their support for the moves.
There will nearly certainly be no outcome before January 20.More news: Apple Car production to begin by 2024 in the United States
The Post says the memo described how people had been sharing maps of the Capitol's tunnels and discussing rallying points to meet up to travel to Washington.
Washington, DC, Mayor Muriel Bowser on Monday urged Americans to avoid the city during Biden's inauguration next week and to participate virtually, referring at a news conference to "very extreme factions in our country that are armed and risky".
President Trump's supporters gather outside the Capitol building on January 6.
They will come equipped with riot gear and weapons, but so far they have not been authorised to arm themselves while on the streets of the U.S. capital, he said.
A total of 15,000 National Guard members have now been activated and will deploy to Washington, D.C., to help provide security in the run up to the inauguration of President-elect Joe Biden.
Other Republicans who represent Western Pennsylvania in Congress have been relatively mum on the latest calls for Trump's removal.
Trump's remarks on Tuesday were his first in public since Wednesday, although he released a video on Thursday in which he condemned the violence but did not concede the election.More news: Medical journal study looks at COVID-19's long-term effects
The riot, which occurred in the evening of January 6, left five people, including a Capitol Hill police officer, dead.