President Trump on May 7 praised the Justice Department for moving to drop the charges against his former national security adviser Michael T. Flynn. (Video: Reuters)

The Justice Department moved Thursday to drop charges against President Trump’s former national security adviser Michael Flynn, a stunning reversal that prompted fresh accusations from law enforcement officials and Democrats that the criminal justice system was caving to political pressure from the administration.

The unraveling of Flynn’s guilty plea for lying to the FBI came after senior political appointees in the Justice Department determined lower-level prosecutors and agents erred egregiously in the course of special counsel Robert S. Mueller III’s investigation of Russian interference in the 2016 election.