If this is true, it is an explosive story. The NY Post’s Michael Goodwin says he has heard this but apparently has not confirmed it. Being ordered to recuse oneself just because of who appointed you would be very unusual.
(From New York Post)
The US attorney Trump appointed for that outpost, Geoffrey Berman, reportedly was ordered to recuse himself by Deputy Attorney General Rod Rosenstein, leaving the office staffed mostly by holdovers from Preet Bharara’s tenure. Bharara was fired by Trump when he refused to resign and is cheering for Trump’s fall.