I don't think just being a Trump supporter should get you banned, and that's not why I'm advocating banning NDJ (despite that direct insinuation).
It's that he knowingly posts misinformation habitually, nearly every post in P&R. If facts and truth don't matter, then just shut that forum down. But if we're trying to have a quality forum with good conversation, at some point a decision has to be made about people who aren't interested in that.
What NDJ does in P&R is no different than what Omaha fan did in Husker Football - continually posting in a manner that disrupts conversation. Apparently the solution is to spend all our time fact-checking him or to put him on ignore. But the ignore function makes for a messy board, and it's ineffectual when other people quote the person you've ignored.