But so many of the basic tenets we used to take as settled just aren't anymore. Remember checks and balances? There was a time when we assumed that no one branch of the federal government could dominate the other two to such an extent as to render precedent irrelevant. Yet, here we are. I'd have a hard time teaching checks and balances with a straight face now.
The US supreme court allowing the president effectively to abolish the Department of Education only reinforces this sense; Sonia Sotomayor, in her dissent, explicitly wrote that the threat to our Constitution's separation of powers is grave.