Enrique Tarrio arrested after holding news conference near site of 6 January 2021 riot in Washington.

Leaders of the Oath Keepers and Proud Boys called for prosecutions of police, prosecutors and members of a congressional committee.

The man was stopped at a security checkpoint while trying to enter the building's visitor centre.

The last time lawmakers met for the routine procedure, things went awry. That is not expected this year.

The Justice Department says four paid FBI informants entered the Capitol during the riot - none of whom were authorised to do so.

This year's US Capitol, Rockefeller, and White House trees came from Alaska, Massachusetts, and Virginia.

Several Capitol riot defendants have asked for hearings to be delayed in anticipation of pardons.

Besides the apparent threat in Washington DC, other election-related threats were made in Michigan, Georgia and Maine.