The Werewolf of Washington (1973)

Stars: Dean Stockwell, Katalin Kallay, Henry Ferrentino
Writer/Director: Milton Moses Ginsberg

A reporter who has had an affair with the daughter of the U.S. President is sent to Hungary. There he is bitten by a werewolf, and then gets transferred back to Washington, where he gets a job as press assistant to the President. Then bodies start turning up in D.C. . . .