It's not. If the Democrats ever retake power literally everything a government agency does while under Elon's control could be overturned with a single judicia

It's not. If the Democrats ever retake power literally everything a government agency does while under Elon's control could be overturned with a single judicial order. OTOH it could be ratified by Congress because fundamentally President is just delegating day to day executive management. Impossible to tell with current makeup of government what will happen.