According to the New York Post: 

“A man who told cops he was the president of the United States went on a rampage in Bushwick, hurling a brick at a car, spraying a fire extinguisher into traffic and scrapping with officers, authorities said yesterday.”

Bush has already caused enough problems in the US and worldwide.  Now he’s got the gall to come to Bushwick and spray a fire extinguisher into traffic?  Fuck that.