Tracy Morgan can add another enemy to his list -- this time, it's an intellectual and developmental disability advocacy group who demand that the controversial comedian “should apologize immediately.

"This quote is far too offensive to be excused as comedy and it is very hurtful to people with intellectual and developmental disabilities and their families," says Peter Berns, CEO of The Arc. "Mr. Morgan has an incredibly powerful platform from which to fix this, and if he's learned anything in the last few weeks, he can't bomb this apology."