Roseanne Barr was fired because she posted a racist tweet about Valerie Jarrett, a former senior advisor to President Barack Obama. In the tweet, Barr compared Jarrett, who is African-American, to the "Muslim Brotherhood and Planet of the Apes," which ABC Entertainment president Channing Dungey called "abhorrent, repugnant, and inconsistent with our values." ABC canceled the reboot of Barr's hit sitcom "Roseanne" just hours after the tweet, despite its strong ratings and renewal for another season. Barr later apologized and claimed she was "Ambien tweeting" at the time, but ABC proceeded with the cancellation due to the severity of the incident and the public backlash it generated.
