Who elected this guy King?

I don't understand the nuances of the separation of the branches of government as mandated in the USA's constitution. But when the President can disregard the Congress with impunity under "executive privilege" isn't that just like being a King? Just what that tea party in Boston all about anyway if Bush, or any President can rule divinely. Hopefully the American citizenry will see more of this behaviour and take action.Bush orders former counsel to defy House committee's subpoena