The pumpkina** invited them to join him at the convention as HONORED GUESTS who will be featured.
Don't that beat all?
Well the pumpkina** has a "thing" for gun people. Phallic symbol? I dunno. Mebbe.
So all ya gotta do is point loaded guns at peaceful protesters making sure you are being photographed and wear a MAGA hat and you too will be invited to stand by your man at his rally or whatever.
So are ya gonna? What better do you have to do right now that that? Get a photo op guns in hand standing next to the pumpkina**? Geez you'll be a celebrity. What beats that?