A federal appeals court on Wednesday allowed President Donald Trump to temporarily remove the head of an independent watchdog agency who was investigating the administration’s mass firing of probationary federal employees.

The former watchdog for federal workers said Thursday that he intends to drop his bid for the courts to reinstate him after the Trump administration fired him without cause last month, signaling the end to the most prominent fight so far about Trump’s effort to reshape the executive branch.

Special counsel Hampton Dellinger says he is dropping his lawsuit to try to keep his job after President Donald Trump fired him. His decision comes a day after the federal appeals court in Washington temporarily removed him from the position,