The Supreme Court on Friday dashed President Donald Trump’s plan to immediately fire the head of an independent agency that investigates whistleblower claims, allowing Hampton Dellinger to remain in the job through at least the middle of next week.

A lawyer for Luigi Mangione, the man accused of fatally gunning down U.S. health insurance executive Brian Thompson in December, told a judge Friday that her client was illegally searched during his arrest and she would seek to exclude that evidence from his trial on state murder and terrorism charges.

Trump’s moves have been deeply controversial while fueling tangible upheaval in the federal government and American society, which should ultimately make it tougher for the Supreme Court to rule in his favor without attracting harsh scrutiny. | Anna Moneymaker/Getty Images