"When DOJ insists that Presidents can lawfully prevent their senior-level aides from responding to compelled congressional process and that neither the federal courts nor Congress has the power to do anything about it, DOJ promotes a conception of separation-of-powers principles that gets these constitutional commands exactly backwards. In reality, it is a core tenet of this Nation's founding that the powers of a monarch must be split between the branches of the government to prevent tyranny."[1]