Trump-loving Roseanne apologizes 'to all Americans' after her racist 'joke' results in brutal backlash
Roseanne Barr in her rebooted sitcom/Screenshot

Roseanne Barr has issued a formal apology after she made a racist joke about former Obama White House Senior Adviser Valerie Jarrett.

"I apologize to Valerie Jarrett and to all Americans," Barr wrote on Twitter. "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."

Earlier on Tuesday, Barr joked that Jarrett was the offspring of the “Muslim Brotherhood & Planet of the Apes.”

Barr's racist joke drew a swift backlash online, with many people expressing outrage that she still has a job at ABC despite her years of making racist and controversial statements.