Posters of Barack Obama in Heath Ledger-style Joker make-up with the legend 'Socialism' beneath it have been popping up recently on surfaces around Los Angeles.

“I’m rather disturbed by the characterization of me as the JOKER,” said Obama.

He added “my perceived misleading statements, unbelievable policies and constant change in plans, which always leave you guessing, make me more like the RIDDLER!”