Trump has managed to redefine 'populist' to some degree. I read comments from guys who voted for him but not because they liked him or his party, quite the opposite in fact.They saw it as a legitimate act of vandalism against a system they believe is broken beyond repair.
In formerly grande bretagne we have Corbin. Head of an opposition party which don't seem have a clue either but know they don't actually want to become the government. This explains their choice of leader - to some degree anyway.