On January 6, 2021, supporters of President Donald Trump attempted to overturn Trump's election loss by storming the capitol during a riot and violent attack against the U.S. Congress, disrupting the joint session of Congress assembled to count electoral votes to formalize Joe Biden's victory. As part of investigations into the attack, the Federal Bureau of Investigation (FBI) opened more than 400 case files, and more than 500 subpoenas and search warrants have been issued. More than 500 people have been charged with federal crimes.