The Supreme Court has handed down a major administrative-law ruling, siding with President Donald Trump in a dispute over the firing of FTC Commissioner Rebecca Slaughter and sharply expanding presidential removal authority over independent agencies. In doing so, the Court overruled Humphrey’s Executor v. United States, the 1935 precedent that had long been understood to shield FTC commissioners from removal except for cause.

The case, Donald J. Trump, President of the United States, et al., Petitioners v. Rebecca Kelly Slaughter, is likely to become a cornerstone decision in the Court’s modern separation-of-powers jurisprudence.