Goose Stepper 

Someone who blindly follows a political or religious movement for the sake of nationalism or imposing their views onto others. The term refers the way Nazis used to march in line with each other. A Goose Stepper is similar to a "kool-aid" drinker.

Many devout supporters of the Republican or Democratic parties are nothing more than goose steppers.

Goose Stepper by Carl Stawicki January 16, 2009