"Taxi Driver" formed part of the delusional fantasy of John Hinckley Jr. that triggered his attempted assassination of President Ronald Reagan in 1981, an act for which he was found not guilty by reason of insanity. Hinckley stated that his actions were an attempt to impress Foster, on whom Hinckley was fixated, by mimicking Travis's mohawked appearance at the Palantine rally. His attorney concluded his defense by playing the movie for the jury. When Scorsese heard about Hinckley's motivation behind his assassination attempt, he briefly thought about quitting film-making as the association brought a negative perception of the film.