The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021. (Photos: Xinhua)

Journalists work near the U.S. Capitol building a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

Concrete road barriers are seen near the U.S. Capitol building a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The security staff are seen near the U.S. Capitol building a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

A security staff member is seen near the U.S. Capitol building a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

A supporter of U.S. President Donald Trump stands near the U.S. Capitol building a day after protesters stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

Supporters of U.S. President Donald Trump are seen near the U.S. Capitol building a day after protesters stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The security staff are seen near the U.S. Capitol building a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.

The U.S. Capitol building is seen a day after supporters of U.S. President Donald Trump stormed it in Washington, D.C., the United States, Jan. 7, 2021.