Bradley Beal

Wizards star Bradley Beal just went off on Donald Trump ... trashing POTUS in a big way ... and essentially teasing more protests when the NBA season starts. Beal used the mic at Wizards media day to call Trump a "clown" and voice his displeasure with everything the President is doing ... from…

This is incredible ... and and it only gets more impressive the more you watch it. "Black-ish" star Miles Brown -- who plays Jack Johnson on the show -- stood right behind Washington Wizards shooting guard Bradley Beal and mimicked his shot PERFECTLY. Watch the form. Watch the way his arms swing…