Appearance notes (from this sheet by MongrelData):
Black or dark blue baseball cap with a "Trump 2020" logo on the front. Short, black beard and mustache. Black puffer jacket, possibly over a black t-shirt. Blue and red knitted "Trump 2020" scarf. Light blue jeans torn at the knees and at the bottom of both front pockets. Black shoes. Seen in a livestream video and in surveillance footage using a smartphone with a white or light gray case inside the Capitol Building.