Roseanne Barr was cancelled because she posted a racist tweet about Valerie Jarrett, a former Obama adviser. In the tweet, Barr compared Jarrett, who is African-American, to a product of the "Muslim Brotherhood & Planet of the Apes," which sparked widespread outrage. ABC, the network airing the "Roseanne" show, described the tweet as "abhorrent, repugnant and inconsistent with our values" and decided to cancel the show immediately after the tweet went public. Despite Barr's apologies and claims that the tweet was made under the influence of Ambien, ABC acted swiftly to cancel the highly rated rebooted sitcom to signal zero tolerance for such racist remarks.