What action has Trump's Justice Department taken regarding New York Mayor Eric Adams?

On the 21st day of what Lawrence O'Donnell calls the 'Trump political weaponization of the Justice Department,' a directive was issued that prevents the FBI from investigating New York Mayor Eric Adams. According to O'Donnell, this unprecedented directive grants Adams complete immunity from federal scrutiny, as the FBI is 'no longer allowed to investigate anything he does anywhere at any time.' This controversial decision represents a significant departure from normal Justice Department protocols, effectively placing the mayor beyond federal law enforcement reach. The directive has reportedly prompted principled resignations within the Justice Department from officials concerned about political interference in the judicial process.