WASHINGTON — President Joe Biden's pick to run the Justice Department temporarily, Acting Attorney General Monty Wilkinson, signed off on a 2017 decision to remove a prosecutor from his position after the prosecutor’s superiors complained he was not adequately prosecuting migrant parents separated from their children, according to documents reviewed by NBC News. Wilkinson, who once served as former Attorney General Eric Holder's deputy chief of staff, was not a Trump appointee when he received the complaints about Joshua Stern, an attorney detailed to the Western District of Texas in 2017.