Can Any of You Find This Statute?

 3/6/21 New York Post reports on an 18-year-old promising the judge he will be good if he can go home to his parents:

The feds charged Cua, of Milton, Georgia, with assault on a federal officer, civil disorder and several other crimes, including entering the floor of the Senate, according to the criminal complaint.

Okay, those others seem like crimes, but "entering the floor of the Senate"?