Quirk maintains that what he calls "The Happy Convention," an informal and unwritten rearrangement of "passing the buck" of government powers, is done to avoid blame and approval ratings becoming lower for a particular person or party. For example, The Happy Convention assigns the power to declare and make war to the President. Congress and the Court play a supporting role--Congress, when requested, gives the President a blank check to use force--the Court throws out any challenges to the legality of the war. Everyone wins if the war avoids disaster. If it turns out badly, the President is held accountable. His ratings fall, reelection is out of the question, congressmen say he lied to them; his Party is likely to lose the next election.
In this way, Quirk reminds us that The Happy Convention is not what the Founders intended for us. For democracy to work properly, the American people have to know what options they have. Courts and Congress argues the case for reestablishing the balance of powers between the courts, the Congress, and the Presidency.