The demonstrations are no longer simple shouting matches. The loony Leftists are coming armed with some serious stuff to include explosives.
The 20 arrested were mostly taken in for possession of banned weapons in parks, on streets and sidewalks. [Leftists!]
Police also said extremists smashed 21 city vehicles, slashed vehicle tires and set one city vehicle on fire.
More @ In Berkeley, Alt-Right Demonstrators, Protestors Clash