Amid threats from both the spreading coronavirus pandemic and of violence in the wake of insurrection at the Capitol, District of Columbia Mayor Muriel Bowser at a press conference on Monday urged Americans not to attend Biden's presidential inauguration in Washington next week.

Asked if she was scared of what might happen on Jan. 20, Bowser said, "If I'm scared of anything, it's for our democracy. Because we have… factions in our country that are armed and dangerous."

She urged the public to participate in the ceremonies virtually and announced she has asked Trump for a "pre-emergency disaster" declaration similar to the one issued for the first inauguration of former President Barack Obama.

"This is necessary because the inauguration poses several unprecedented challenges that exceed the scope of our traditional planning processes," Bowser said.

Bowser is also asking the Department of Homeland Security to coordinate a federal force deployment plan and extend the inauguration's special event security period, including the cancellation of public gathering permits -- which would require the cooperation of the Interior Department -- through Sunday, Jan. 24. Additionally, Bowser requested daily intelligence briefings from the FBI throughout the security period.

The National Park Service on Monday morning temporarily closed the Washington Monument "in response to credible threats to visitors and park resources" through Jan. 24.

-ABC News' Quinn Owen

During Monday's brief session, Republicans blocked an effort by Democrats to get unanimous consent to force Vice President Mike Pence to invoke the 25th Amendment, and House Democrats introduced one article of impeachment against President Trump for "incitement of insurrection" in the wake of a pro-Trump mob breaching the U.S. Capitol last Wednesday.

The "incitement of insurrection" article of impeachment was introduced by Reps. Jamie Raskin, D-Md., Ted Lieu, D-Calif., and David Cicilline, D-R.I., along with more than 210 Democratic co-sponsors.

The measure says that Trump has "demonstrated that he will remain a threat to national security, democracy and the Constitution if allowed to remain in office and has acted in a manner grossly incompatible with self-governance and the rule of law."

House Speaker Nancy Pelosi has told Democrats they will move forward with an impeachment vote immediately if Pence and the Cabinet do not invoke the 25th Amendment and remove Trump from power.

Hoyer told reporters this morning that "there very well could be" an impeachment vote as early as Wednesday.

-ABC News' Mariam Khan

The House has adjourned moments after gaveling into a pro forma session after Republicans blocked an effort by Democrats to get unanimous consent to force Vice President Mike Pence to invoke the 25th Amendment.

Majority House Leader Steny Hoyer, D-Md., introduced a request by unanimous consent to bring up the Raskin resolution calling on Pence to mobilize the Cabinet to activate the 25th Amendment -- effectively declaring Trump incapable of executing the duties of his office and making Pence the acting president -- but GOP Rep. Alex Mooney of West Virginia objected to the effort.

The House is expected to return on Tuesday for a full floor vote on the legislation. If Pence does not agree to invoke the 25th Amendment, House Democrats says they'll move forward with impeachment.

Monday's session began with the House clerk reading the formal resignation of House Sergeant at Arms Paul Irving and Timothy Blodgett being sworn in as the new Sergeant at Arms.

Calls for the president's removal come after a mob of pro-Trump supporters breached the Capitol on Wednesday while Congress was voting to certify the electoral votes. The assault on the Capitol left at least five dead, including one Capitol Police officer.

-ABC News' Mariam Khan

Drawing a stark contrast to the divisions in the country that boiled over last week, Biden's inauguration theme is set to be of "America United."

After the swearing-in ceremony and inaugural ceremonies at the U.S. Capitol on Jan. 20, the Biden's, Vice President-elect Kamala Harris and her husband Doug Emhoff will be joined by former President Barack Obama and Michelle Obama, former President George W. Bush and Laura Bush, and former President Bill Clinton and Secretary Hillary Clinton for a visit to Arlington National Cemetery. There, the current and former presidents will visit the Tomb of the Unknown Soldier for a wreath-laying ceremony.

The Presidential Inaugural Committee (PIC) announced in a statement Monday, "at a time of unprecedented crisis and deep divisions, America United reflects the beginning of a new national journey that restores the soul of America, brings the country together, and creates a path to a brighter future."

In addition to hosting a National Day of Service -- "United We Serve" -- and the presidential visit to Arlington, the committee will host "Field of Flags" -- a public art display at the National Mall with 191,500 flags representing every state and territory, and 56 pillars of light, in an effort to represent the American people who are unable to travel to Washington for the event.

The committee said in the release the inauguration "will showcase the American people's resilience, heroism, and unified commitment to coming together as a nation to heal and rebuild so that we emerge as the indomitable force that a united America represents."

-ABC News' Beatrice Peterson

Following several Republicans who aired their grievances with a "rushed" process, Rep. Chip Roy, R-Texas, condemned Trump for pressing Vice President Mike Pence to overturn the election but argued he couldn't support the impeachment article as written.

"Let us condemn which must be condemned but do it the right way with deliberation and without disastrous side effects. We must end tearing apart our nation by social media and sound bite," Roy said.

Another Texas Republican, Rep. Jodey Arrington, expressed some discontent at the president's rhetoric but suggested it would set a dangerous precedent to pin the actions of his supporters at the Capitol on the president.

"I'm not saying that the president didn't exercise poor judgment, but to criminalize political speech by blaming lawless acts on the president's rhetoric is wrong and a very dangerous precedent," he said to groans from Democrats. "The criminals who stormed the Capitol that day acted on their own volition. They are responsible. This is an important moment for our nation. We have to come together."

While other Republicans didn't go so far as to directly condemn Trump, they all condemned the violence at the Capitol -- but argued it was time for unity and healing, instead of an impeachment with one week until Biden's inauguration.

Democrats, however, rejected that stance.

"A police officer was killed. And what I hear from the other side is that it's time to heal? He's not even buried yet!" Rep. Donald Norcross, D-N.J., scolded his colleagues.

"If he has four years or four days, we must do the right thing for all Americans because he must be held accountable," he added.

Republicans argued there had been no hearings or witnesses called in the Judiciary Committee, to which Democrats responded that the lawmakers themselves witnessed the violence and immediate action must be taken to avoid further threats.

-ABC News' Benjamin Siegel