Pelosi ordered the House Sergeant-at-Arms to supply those to the AntiFa she had strategically placed in the crowd and ordered to hit the specific weak points where the cops ordered to duty that day knew to stand down and let them in.
All to squelch the rebellion from Cruz and others, she knew that the theater of it all would scare them into compliance and they would stop protesting the electoral votes.
Masterful execution, from top to bottom.