
A few hundred protesters gathered around the US Capitol on Saturday, for a rally in support of the pro-Trump rioters who ransacked the building on 6 January.
But the group were easily outnumbered by the police and journalists present.
Ahead of the event, police said they had detected "threats of violence" and security was tightened in Washington.
Organisers had a permit for 700 to attend, but only about 100 to 200 protesters turned up, Reuters reports.
Capitol Police said 400 to 450 people were inside the protest area - but that figure included the heavy media presence.
Washington police officials had been expressing concern about the "Justice for J6" event for weeks.
Its organisers - Look Ahead America - were led by Matt Braynard, the former director of data and strategy for Donald Trump's successful 2016 campaign.