NEW: Lev Parnas' attorney has written to Attorney General William Barr requesting that the AG recuse himself from the Parnas investigation and prosecution and asks for the appointment of a special prosecutor, according to a court filing.

MORE: The letter from Parnas' attorney to Barr was apparently faxed today.

The letter says that discovery being returned to Parnas was delayed by prosecutors in NY but doesn't say that some of that discovery was delayed because Parnas' phone was locked.

— Tom Winter (@Tom_Winter) January 20, 2020