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Update: ABC has canceled ‘Roseanne’ after the star’s epic Twitter meltdown

Roseanne Barr fired off a bizarre tweetstorm Monday night into Tuesday, falsely claiming Chelsea ​Clinton ​is married to George Soros’ nephew​, repeating a false rumor that the billionaire is a Nazi sympathizer​ and cracking a racist joke about former Obama adviser Valerie Jarrett — before announcing she was quitting the social media platform altogether.

The comedienne started her internet rant just before midnight Monday, tweeting, “Chelsea Soros Clinton,” followed by a since-deleted tweet that said, “she’s married to soros nephew.”

An hour later, she followed up with, “soros’ goal; the overthrow of us constitutional republic by buying/backing candidates 4 local district attorney races who will ignore US law & favor ‘feelings’ instead-and call everyone who is alarmed by that ‘racist.’”

In another tweet, she called Soros a “nazi who turned in his fellow Jews 2 be murdered in German concentration camps & stole their wealth.”

Then, in response to someone who questioned what Hillary Clinton is “hiding under her winter clothes at the end of May,” Barr replied, “its a colostomy jug cuz full of shite.”

Barr, who currently stars in the revival of her hit TV show “Roseanne,” also threw in a racist tweet about Jarrett, President Barack Obama’s former senior adviser.

“muslim brotherhood & planet of the apes had a baby=vj,” she wrote in the tweet, which has been deleted.

Barr’s post about Chelsea garnered a response from the 38-year-old herself.

“Good morning Roseanne – my given middle name is Victoria. I imagine George Soros’s nephews are lovely people. I’m just not married to one. I am grateful for the important work @OpenSociety does in the world. Have a great day!” Chelsea Clinton wrote.

In response, Barr tweeted, “CORRECTION: CHELSEA CLINTON IS NOT MARRIED TO A SOROS NEPHEW. HER HUSBAND IS THE SON OF A CORRUPT SENATOR, SO SORRY!:”

She also issued a blanket apology Tuesday morning in announcing, “I am now leaving Twitter.”

“I apologize to Valerie Jarrett and to all Americans,” Barr wrote. “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.”