“he is still an Obama appointee”
Judge E. Sullivan appointed by Ronald Reagan.
Sullivan was nominated by President Bill Clinton on March 22, 1994, to a seat on the United States District Court for the District of Columbia vacated by Judge Louis F. Oberdorfer. He was confirmed by the United States Senate on June 15, 1994, and received his commission on June 16, 1994.
According to wiki he was appointed to his present Judgeship by Bill Clinton.