The Secret Service catalogs threats and potential threats, they know their IDs, where they live, their backgrounds, MOs, what circles they rotate in, and many of them have their movements monitored.
If this same individual has done this multiple times, how is it possible for her to get anywhere near one of these events with or without fraudulent ID?
Good points, good questions.
I would add that the press also knows who Desiree and Medea are. To imagine that these misfits go unnoticed hiding out in the midst of press is nonsense. They’re being given safe haven; if not out of sympathy for the cause, then for more “exciting” footage.