When the United States Founding Fathers framed The Constitution, they made sure that Americans would always have the right to peacefully protest and criticize.
In America, one of the forms of criticism that's specifically protected is parody.
A parody is a work that imitates another work for the purpose of ridicule or ironic commentary. The US Supreme Court recognizes parody as a protected form of free speech, and parodies are even given special rights under copyright law. +Aaron Kimmins