An NSSE is designated by the Secretary of Homeland Security and is led by the Secret Service.

Washington, D.C., Mayor Muriel Bowser requested the designation, according to the agency.

January 6 is typically a formality, but the last time Congress attempted to certify the results of the presidential election, a group of supporters of former President Donald Trump breached the Capitol in an attempt to stop it.

The events of January 6, 2021, led to hundreds of prosecutions by the Justice Department and criminal charges brought by Special Counsel Jack Smith against Trump, who has denied any wrongdoing.