Flood of Capitol riot, tribal cases swamps US prosecutors

In this Jan. 6, 2021, photo, rioters, including Dominic Pezzola, center with beard, are confronted by U.S. Capitol Police officers outside the Senate Chamber inside the Capitol, Wednesday, Jan. 6, 2021, in Washington. The Proud Boys and Oath Keepers make up a fraction of the more than 300 Trump supporters charged so far in the siege that led to Trump's second impeachment and resulted in the deaths of five people, including a police officer. But several of their leaders, members and associates have become the central targets of the Justice Department’s sprawling investigation. (AP Photo/Manuel Balce Ceneta)

FILE - In this Jan. 6, 2021, file photo, U.S. Capitol Police push back rioters trying to enter the U.S. Capitol in Washington. A former State Department aide in President Donald Trump’s administration has been charged with participating in the deadly siege at the Capitol. Court papers say Federico Klein was seen wearing a “Make America Great Again" hat amid the throng of people trying to force their way into the Capitol. Authorities say Klein pushed his way toward the doors, where “he physically and verbally engaged” with officers trying to keep the mob back. Klein resigned from his position on Jan. 19, the day before Joe Biden was sworn in as president. (AP Photo/Jose Luis Magana, File)

An inner perimeter anti-scaling fence is around the U.S. Capitol, Tuesday, March 16, 2021, in Washington. (AP Photo/Alex Brandon)