(Source)
Federal law has long required that members of certain independent commissions — e.g. the Consumer Financial Protection Bureau, the Federal Trade Commission, etc — can only be removed for a good reason. By a 6–3 vote (with all Democrats dissenting) SCOTUS has just blessed Trump's effort to fire anyone who he doesn't like, irrespective of federal law.
The exception is Federal Reserve Governor Cook, who SCOTUS allowed to remain in her position. Nominally this is because she wasn't given due process to dispute Trump's (bogus) accusations of mortgage fraud; in reality, this is because the Republican justices are literally invested in the status quo and extending the decision to the Federal Reserve would cause the economy to crash.
