MSNBC host Mika Brzezinski went on a tirade Wednesday pushing Twitter to ban President Donald Trump’s account and asked to speak directly with the platform’s CEO Jack Dorsey. “Twitter need to know why Trump is not banned?” she asked, proceeding with the following thread:

Trump and Brzezinski have long feuded on the platform and The President often refers to her morning show, “Morning Joe” as “Morning Psycho” and criticizes its low ratings. And that’s exactly what sparked Brzezinski’s reaction Wednesday after the President tweeted that there should be a “cold case” opened against Brzezinski’s co-host and husband Joe Scarborough over a conspiracy theory that Scarborough may have killed Lori Klausutis, a 28-year-old intern who tragically died while working in his then-Florida congressional office.

“You’re a sick person, to put this family through this, to put her husband through this, to do this just because you’re mad at Joe, because Joe got you again today,” Brzezinski said during the show Wednesday morning. “Twitter, you shouldn’t be allowing this, and you should be taking these tweets down, and you should be ashamed of yourself. You’ll be hearing from me on this, because this is B.S.”

She continued, “But Donald, you are a sick person. You’re really a cruel, sick, disgusting person.”