WASHINGTON — The Supreme Court on Wednesday allowed President Donald Trump to fire members of the Consumer Product Safety Commission, a federal agency set up by Congress to be independent of political pressures. The justices, granting an emergency request filed by the Trump administration, blocked a Maryland-based federal judge’s ruling that reinstated Mary Boyle, Alexander Hoehn-Saric and Richard Trumka Jr., all of whom had been appointed by then-President Joe Biden. Without the three members in place, the five-member commission would for now lack the necessary quorum to fulfill its obligation to protect consumers from defective products. Under existing law, members...