ABC, in a stunning move, has decided to cancel its Roseanne revival following star Roseanne Barr's racist tweet Tuesday. 

"Roseanne's Twitter statement is abhorrent, repugnant and inconsistent with our values, and we have decided to cancel her show," ABC Entertainment president Channing Dungey said Tuesday.

Early Tuesday, star, head writer and exec producer Barr attacked Valerie Jarrett, a senior adviser to former President Barack Obama, in a since-deleted tweet in which she said "Muslim brotherhood & planet of the apes had a baby=vj." Barr subsequently apologized: "I apologize to Valerie Jarrett and to all Americans. I am truly sorry for making a bad joke about her politics and her looks. I should have known better. Forgive me — my joke was in bad taste."