A Florida man charged with unlawfully “parading” during the Jan. 6 riot at the Capitol asked the Supreme Court this week to hear his appeal, a move that could affect more than 400 cases surrounding the riot if they decide to hear the case.

The Supreme Court just last month dealt a blow to the Justice Department after it narrowed the scope of how the Department of Justice can apply an obstruction statute prosecutors used to charge more than 120 defendants who participated in the Jan. 6 riot. Now, 57-year-old John Nassif is seeking to appeal his conviction on a more common charge levied against defendants for parading and picketing inside the building, according to a new filing.