There is NO possible way, that two crashers, would be invited to an entire FAMILY weekend of activities, by a leading Senator, with presidential designs; let alone allowed to stay for the dinner and dancing. Such events are usually run by wedding planners, who check off invited guest on a list they carry around.
Uh, yeah. Not so much the truth on that one either. Any wedding planner that has time to play bouncer isn't worth a whole hell of a lot.