This today from The Hill :
The Secret Service may investigate a fax sent to a Democratic lawmaker that depicts President Barack Obama as the Joker and warns of “death to all Marxists.” The black-and-white fax portrays Obama in makeup similar to that worn by actor Heath Ledger in his portrayal of the Joker in last summer’s “The Dark Knight.” On Obama’s forehead is a communist hammer-and-sickle insignia, and beneath the image is the text: “Death to All Marxists! Foreign and Domestic!”