"Many of us have denounced what she said—which has nothing to do with our party, our movement, or our true beliefs," Lahren said of Barr's tweet.
"It was stone cold racist comment. It wasn't a joke, it was mean spirited, it was vile. ABC knew this about her going in," Steve Schmidt said of Roseanne.
ABC canceled Barr's sitcom shortly after she wrote the racist tweet.
Barr said she was going to leave Twitter after receiving criticism for her racist rant toward Valerie Jarrett on Tuesday, but it seems the comedian is still actively tweeting.
Barr, a devoted supporter of President Donald Trump and purveyor of far-right blogs, also earnestly shared a series of conspiracy theories with her Twitter followers.
"If you think about what the economy was like when President Obama took office, we were losing 750,000 jobs a month."