You chose the picture to represent whatever you wanted that's ok I dont question nor will I offer any conjecture about how you made your decision, in your opinion he may be representative.
As to the lead guy I was referring to and the rest of the people in scene I don't know that their motivations represent the crowd outside in general. So no they do not represent on this important level I would say. The crowd in general wasn't their to overtake the buildings and stop the voting despite what you may or may not be believing based upon the news media. Logically the past actions of Trump protests/rallies can and do indicate what usually has gone on and so the events that occured are not in character.
The head guy is a known actor/agitator basically with people reporting him as having been seen and photographed / videod at events all over the last months. The particular photo you used has a set up posed look about it. This is a bunch if people posing looking proud about what they have done. Most have stopped to pose for the picture hence their leg spacing and also most are not by appearances the normal crowd who would be seen at a Trump event with the facial hair of unemployed, unemployable people so I don't know that it's representative again, as the long beards are clearly overly represented. The lead horns guy is a Fckn Idiot he reminds me of the 'Beef Supreme' character in the 'Idiocracy" movie.