In Miami -LRB- where the city objected when a museum showed the art of those who refused to denounce Fidel Castro -RRB- and in New York -LRB- where Mayor Rudolph Giuliani took offense , on religious grounds , to an exhibition at the Brooklyn Museum -RRB- , the trial courts found that the threatened sanctions were motivated by a desire to suppress unpopular views and for this reason were contrary to the First Amendment .