A load of crap for a party that is full of CRAP.
This sounds like a liberal reference type of thing. You know how they like to think they're clever and think they're going over your head when you're already two steps ahead of 'em. Maybe a hidden reference to the manure that Biff always ran into in his car in the Back to the Future series. The leftists often reference Trump as Biff on their websites and blog sites.