“The Framers … gave Congress the power to regulate commerce, not to compel it,” writes Roberts. Otherwise you “undermine the principle that the Federal Government is a government of limited and enumerated powers.”

That’s Roberts, philosophical conservative. But he lives in uneasy coexistence with Roberts, custodian of the court, acutely aware that the judiciary’s arrogation of power has eroded the esteem in which it was once held. Most of this arrogation occurred under the liberal Warren and Burger courts, most egregiously with Roe v. Wade, which willfully struck down the duly passed abortion laws of 46 states. …

How to reconcile the two imperatives — one philosophical and the other institutional? Assign yourself the task of writing the majority opinion. Find the ultimate finesse that manages to uphold the law, but only on the most narrow of grounds — interpreting the individual mandate as merely a tax, something generally within the power of Congress.