A member of the National Guard mounts guard near the U.S. Capitol building, as the House of Representatives debates impeaching U.S. President Donald Trump a week after his supporters stormed the Capitol building in Washington, U.S., January 13, 2021. REUTERS/Brandon Bell

Members of the National Guard rest in the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

Members of the National Guard load live-rounds as they guard Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

House Majority Leader Steny Hoyer, Democrat of Maryland, walks past members of the National Guard as he arrives at the US Capitol in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by SAUL LOEB / AFP)

WASHINGTON, DC - JANUARY 13: Speaker of the House Nancy Pelosi (D-CA) (C) wears a protective mask while walking to the House Floor during a vote on the impeachment of President Donald Trump at the U.S. Capitol on January 13, 2021 in Washington, DC. The House of Representatives moved forward with impeachment following Vice President Mike Pences refusal to use the 25th amendment to remove Trump from office after protestors breached the U.S. Capitol last week. Stefani Reynolds/Getty Images/AFP

WASHINGTON, DC - JANUARY 13: Rep. Marjorie Taylor Green (R-GA) wears a protective mask reading Censored at the U.S. Capitol on January 13, 2021 in Washington, DC. The House of Representatives is expected to vote to impeach President Donald Trump later today, after Vice President Mike Pence declined to use the 25th amendment to remove him from office after protestors breached the U.S. Capitol last week. Stefani Reynolds/Getty Images/AFP

WASHINGTON, DC - JANUARY 13: An aide pushes a podium belonging to House Speaker Nancy Pelosi, which was stolen last week, through Statuary Hall at the U.S. Capitol on January 13, 2021 in Washington, DC. The House of Representatives is expected to vote to impeach President Donald Trump later today, after Vice President Mike Pence declined to use the 25th amendment to remove him from office after protestors breached the U.S. Capitol last week. Stefani Reynolds/Getty Images/AFP

Members of the National Guard take a rest in the Rotunda of the US Capitol in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by SAUL LOEB / AFP)

National Guard members sleep, before Democrats begin debating one article of impeachment against U.S. President Donald Trump at the U.S. Capitol, in Washington, U.S., January 13, 2021. REUTERS/Joshua Roberts

Members of the National Guard rest in the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

Members of the National Guard receive food in the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

Members of the National Guard deplaoy from the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

Members of the National Guard walk through the Rotunda of the US Capitol in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by SAUL LOEB / AFP)

Members of the National Guard rest in the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by SAUL LOEB / AFP)

Speaker of the House Nancy Pelosi puts down the gravel as she presides the US House of Representatives vote on the impeachment of US President Donald Trump at the US Capitol, January 13, 2021, in Washington, DC. - The Democrat-controlled US House of Representatives on January 13 opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead. (Photo by SAUL LOEB / AFP)

WASHINGTON, DC - JANUARY 13: Rep. Brian Mast (R-FL) (C) gives members of the National Guard a tour of the U.S. Capitol on January 13, 2021 in Washington, DC. The House of Representatives is expected to vote to impeach President Donald Trump later today, after Vice President Mike Pence declined to use the 25th amendment to remove him from office after protestors breached the U.S. Capitol last week. Stefani Reynolds/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

WASHINGTON, DC - JANUARY 13: Rep. Brian Mast (R-FL) (R) greets members of the National Guard in the U.S. Capitol on January 13, 2021 in Washington, DC. Security has been increased throughout Washington following the breach of the U.S. Capitol last Wednesday, and leading up to the Presidential inauguration. Stefani Reynolds/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

National Guard members sleep in the Capitol Vistor's Center on Capitol Hill before Democrats begin debating one article of impeachment against U.S. President Donald Trump at the U.S. Capitol, in Washington, U.S., January 13, 2021. REUTERS/Joshua Roberts

Members of the National Guard rest in the Capitol Visitors Center on Capitol Hill in Washington, DC, January 13, 2021, ahead of an expected House vote impeaching US President Donald Trump. - The Democrat-controlled US House of Representatives on Wednesday opened debate on a historic second impeachment of President Donald Trump over his supporters' attack of the Capitol that left five dead.Lawmakers in the lower chamber are expected to vote for impeachment around 3:00 pm (2000 GMT) -- marking the formal opening of proceedings against Trump. (Photo by Brendan Smialowski / AFP)

WASHINGTON, DC - JANUARY 13: Members of the National Guard sleep in the Visitor Center of the U.S. Capitol on January 13, 2021 in Washington, DC. Security has been increased throughout Washington following the breach of the U.S. Capitol last Wednesday, and leading up to the Presidential inauguration. Stefani Reynolds/Getty Images/AFP