ABC has canceledfollowing a Roseanne Barr tweet that suggested former Obama White House adviser Valerie Jarrett was a product of the Muslim Brotherhood and theChanning Dungey, president of ABC Entertainment, released the following statement:Hulu and the Laff comedy channel said Tuesday they were pulling re-runs offrom their schedules.Before the announcement, Barr apologized to Jarrett for "making a bad joke about her politics and her looks." The tweet was deleted and she said she is leaving Twitter.On Tuesday night, Barr returned to Twitter to apologize again and to leave a message for her fans:Bob Iger, CEO of The Walt Disney Company, reiterated Dungey's statement on Twitter.Cast member Sara Gilbert, who played Darlene, also spoke out.Emma Kenney, who played Harris, said she'd called her manager to quit the show and found out it was canceled.Wanda Sykes, who worked as a consulting producer on the show, announced before the show was canceled that she would be leaving the show.