Roseanne Barr unleashed a fresh batch of controversial tweets overnight and into Wednesday morning, blaming a prescription sleeping pill for the racist comment that got her show canceled - and lashing out at her co-stars for "throwing her under the bus".
She said on Tuesday that she was leaving Twitter, but she just can't seem to log off.
Among her retweets: Photos of former Obama aide Valerie Jarrett side by side with an ape.
That led to the response on Twitter by the drug maker Sanofi.
Spokeswoman Sarah Huckabee Sanders says Trump's tweet Wednesday was meant to point out media bias against him.
She also said she had been on Ambien, a medication used to treat insomnia, at the time.
She tweeted, "guys I did something unforgiveable so do not defend me".
Trump tweeted that the CEO of ABC's parent company called Valerie Jarrett to say the network wouldn't tolerate Barr's tweet about her. Trump wrote that CEO Bob Iger never call him to apologize for "the terrible statements" that have been said about him on ABC".
Barr later deleted this tweet, but in another pointed again to her use of Ambien as a reason for her misconduct. I will handle my sadness the way I want to. He said he "knew it would not end well".
Some of her replies to fans clearly expressed how she feels. At one point she said she believes she was sacked because of fears over a potential boycott of the show's advertisers.
Arnold, who was a writer and sometimes actor on the original "Roseanne" TV show in the 1980s and 1990s, was married to the comic actress for four tumultuous years.
Rather than distancing himself from Barr's racist remarks, Trump jumped right into the argument about whether she was subjected to a double standard. One of the posts she shared said, inexplicably, "they brought the show back so they could inevitably cancel the show when she said something they didn't like".
Even with Barr having issued an apology for her comment, it's unlikely that the series could continue on another network and still hit the same level of ratings that it was at before her comment, as the outcry against her has been quite significant. Some of the retweets promoted conspiracy theories and anti-ABC grievances.
One message she re-tweeted on Wednesday falsely accused the Hungary-born Jewish billionaire of collaborating with the Nazis.