We all remember when Richard Nixon fired special prosecutor Archibald Cox, right? For the same reason Trump wanted to fire Mueller: to, basically, stop an investigation from getting too close.
But do we remember who actually did the firing?
First, Nixon tried to get his Attorney General Elliot Richardson to do it. Richardson refused, and resigned in protest. Undeterred by this act of civic conscience, Nixon ordered his Deputy Attorney General Bill Ruckelshaus to do it. Ruckelshaus refused, and resigned in protest. Still undeterred, Nixon reached even further into his Justice Department, and there he found his willing worm: solicitor general Robert Bork. (Bork would go on to greater fame as Ronald Reagan's failed nominee to the Supreme Court.) The whole operation took less than a day.
So now we have Trump trying to fire Mueller. And what happens? His White House counsel threatens to resign, and Trump backs down immediately.
You can call Trump an authoritarian, a fascist, a tyrant, or an aardvark. But understand this: compared to Nixon, the guy's a piker.
And don't forget: this is a man who made himself famous all across America by telling people, "You're fired."