Common tactic used by the anarchists...keep the victims attention focused forward and a brave warrior sneaks up from behind and clubs him in the head.
You’ll notice that the ‘club’ flexes and looks like an umbrella.
It has a large, heavy chunk of metal, maybe a hexagonal nut, concealed at its end. The ‘brave warrior’ whips the end of it striking the flag owner on the head with far more force than it appears.
Portland officials are helping antifa. If they weren’t, they would force them to remove their masks or be arrested.
This is why folks should go out in pairs or in threes. Gives the option of standing back to back.