In a 63-page ruling, Judge Reggie B. Walton of the Federal District Court for the District of Columbia vacated all the court-martial proceedings against Sergeant Bergdahl after October 2017.
At the time, the military judge in the case, Jeffery R. Nance, then an Army colonel, applied for a job with the Justice Department under President Donald J. Trump, a step he did not disclose.
Mr. Trump had repeatedly railed against the sergeant, calling him a traitor and suggesting that he be executed.
The ruling could lead to a second trial before a new judge.
In pleading guilty to desertion and to endangering the American troops sent to search for him at his court-martial, Sergeant Bergdahl had his rank reduced to private and was dishonorably discharged.
Persons:
Bowe Bergdahl, Reggie B, Walton, Sergeant Bergdahl, Jeffery R, Nance, Donald J, Trump, Eugene R
Organizations:
Army, Federal, Court, District of Columbia, Justice Department
Locations:
Afghanistan