President Barack Obama has been slammed for fundraising with a 'pro-drug, anti-police' activist who allegedly cavorts with gangsters.

Obama is in New York City raising campaign cash with 'NBA Heroes' -- a selection of former and current basketball stars including Michael Jordan, Patrick Ewing and Alonzo Mourning.

But the all-star line up also includes New York Knicks player Carmelo Anthony, who is currently seen in a YouTube video and DVD that promotes drug use and threatens people who 'snitch' to police about drug dealers and other criminals.