The Supreme Court ruled Friday that the Trump administration can restart deportations of up to 530,000 Cuban, Haitian, Nicaraguan and Venezuelan migrants who entered the US as part of a controversial “humanitarian parole” program under former President Joe Biden.

The order lifted a lower-court decision that blocked a move to cancel the parole program for about 500,000 migrants from Cuba, Haiti, Nicaragua and Venezuela.

Trump v. Wilcox is the culmination of a longstanding grudge many Republican legal elites hold against Humphrey’s Executor v. United States (1935), the Supreme Court case establishing that Congress may create independent agencies whose members may only be fired for cause.