ABC cancelled Roseanne Barr’s TV series after she compared former Obama White House adviser Valerie Jarrett to an ape.
The star posted tweets online also linking Ms Jarrett to the Muslim Brotherhood before later apologising.
In a grovelling apology she wrote: “I apologise 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.”
Who is Valerie Jarrett?
The 61-year-old served as the senior adviser to president Barack Obama. During her time with the Obama administration, she oversaw Engagement and Intergovernmental Affairs and chaired the White House Council on Women and Girls.
She is Obama’s longest serving advisor and co-chaired the Obama-Biden presidential transition team.
Ms Jarrett oversaw the Obama administration’s efforts to support working families, helping to promote policies such as equal pay, paid leave and affordable childcare.
She also led campaigns to try and end sexual assault and gun violence.
Ms Jarrett has known the Obama family since hiring Michelle Obama in 1991 as an assistant to the mayor of Chicago.
Now she continues to help the former president, acting as a senior advisor to the Obama Foundation alongside her role advising media company ATTN:
In her early career, Ms Jarrett studied her undergraduate degree at Stanford and studied law at the University of Michigan.
She left private practice for public service, serving as a planning commissioner at the Chicago city government, helping to redevelop neglected neighbourhoods. She later became chairman of the Chicago Transit Board.
Ms Jarrett was born in Iran to two American parents. Her father brought the family to Iran while running a hospital that sent American doctors to developing countries.
She currently serves on the boards of Lyft and Ariel Capital Management Holdings. She is also a senior fellow at the University of Chicago Law School.
Why did was she attacked on Twitter by Roseanne Barr?
Ms Barr is one of Donald Trump’s most high-profile supporters.
Her tweet was in response to a post from a user that accused Ms Jarrett of covering up the Obama administration’s alleged “misdeeds.”
She later wrote on Twitter: “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.”