I wish I could simply paste in the entire article by Leslie McAdoo Gordon:
Sullivan’s apparent animus toward Flynn's attorney and his fixation on Flynn being punished demonstrate bias in this case — sufficient to require his disqualification.
It's really well reasoned and expressed. As the subtitle indicates, the author focuses on two primary issues.
First, Sullivan has exhibited extreme and improper bias against Flynn's attorney, Sidney Powell. McAdoo Gordon begins this section by pointing out disparities in Sullivan's treatment of Powell, as compared to the other attorneys involved--a manifest lack of respect. But she then moves on to an even more serious issue demonstrating Sullivan's animus against Powell--his unfounded and, really, rather unhinged attempt to paint Powell as in some way unethical. I say unhinged because this attempt follows a pattern of conduct by Sullivan--beginning with his accusation of "treason" leveled against Flynn, that appear to demonstrate appalling ignorance of basic matters both of law as well as of legal ethics. That, to me, is most easily explained not by ignorance per se but by an animus that is so consuming as to lead Sullivan to make grossly unfounded accusations in open court: