U.S. Capitol Police hold protesters at gunpoint near the House Chamber on Wednesday.

People shelter in the House gallery as protesters try to break into the House Chamber at the U.S. Capitol on Wednesday, Jan. 6, 2021, in Washington. (AP Photo/Andrew Harnik)

Trump supporters gather outside the Capitol on Wednesday as Congress prepares to affirm President-elect Joe Biden's victory.

Trump supporters try to break through a police barrier on Wednesday at the Capitol in Washington.

People shelter in the House gallery as protesters try to break into the House Chamber at the U.S. Capitol on Wednesday in Washington.

Supporters of President Trump crowd inside the U.S. Capitol on Wednesday.

Supporters of President Trump are confronted by Capitol Police officers outside the Senate Chamber inside the Capitol on Wednesday in Washington.

People shelter in the House gallery as protesters try to break into the House Chamber at the U.S. Capitol on Wednesday.

A flag hangs between broken windows after President Trump's supporters tried to break through police barriers outside the U.S. Capitol on Wednesday.

People gather in the House gallery as protesters try to break into the House Chamber at the U.S. Capitol on Wednesday in Washington.

Protesters confront U.S. Capitol Police in the hallway outside of the Senate chamber at the Capitol in Washington on Wednesday.

People are evacuated from the House gallery as protesters try to break into the House Chamber.

U.S. Capitol Police watch as protesters enter a hallway near the Senate chamber at the Capitol in Washington on Wednesday.

U.S. Capitol Police try to hold back protesters outside the U.S. Capitol on Wednesday.

Lawmakers prepare to evacuate the floor as protesters try to break into the House Chamber at the U.S. Capitol on Wednesday.

Police stand guard after holding off Trump supporters who tried to break through a police barrier on Wednesday at the Capitol in Washington.

Police keep a watch on demonstrators as they attempt to break through a police barrier on Wednesday at the Capitol in Washington.

Trump supporters try to break through a police barrier on Wednesday at the Capitol.

A demonstrator talks to police over a barrier, Wednesday at the Capitol in Washington.

With the Washington Monument in the background, people attend a rally in support of President Trump near the White House on Wednesday in Washington.

Police hold off Trump supporters who tried to break through a police barrier at the Capitol.

Trump supporters try to break through a police barrier, Wednesday, Jan. 6, 2021, at the Capitol in Washington. As Congress prepares to affirm President-elect Joe Biden's victory, thousands of people have gathered to show their support for President Donald Trump and his claims of election fraud. (AP Photo/Julio Cortez)

People who claim they are members of the Proud Boys march in Washington on Wednesday in support of President Trump.

Members of the National Guard arrive to secure the area outside the U.S. Capitol late Wednesday.