He subsequently blamed his act on his obsession with Jodie Foster's Taxi Driver character (in the film, De Niro's character, Travis Bickle, makes an assassination attempt on a senator).
Han skyllde sitt uppträdande på sin besatthet av Jodie Fosters karaktär Iris i Taxi Driver (i filmen gör De Niros karaktär, Travis Bickle, ett mordförsök på en senator).