ABC has canceled its revival of Roseanne after its star and series creator Roseanne Barr posted a racist tweet about former Barack Obama aide Valerie Jarrett. “Roseanne’s Twitter statement is abhorrent, repugnant and inconsistent with our values,†Channing Dungey, the president of ABC Entertainment said in a statement, “and we have decided to cancel her show.†After Barr went on a tirade this morning — she also attacked Chelsea Clinton— she apologized and said she was leaving Twitter. Sara Gilbert, her co-star and an executive producer on the revival, condemned Barr’s statement, while writer Wanda Sykes said she was leaving the show. Co-showrunner Whitney Cummings also left the show earlier this month. All mentions of the show appear to be removed from ABC’s press website.