A constitutional classic for the ages: the Commerce Clause; the Taxing Clause; the General Welfare Clause; severability; quotes from the Federalist papers; 14 merit briefs; 126 amicus briefs; six hours of oral argument and four opinions.

At stake? The Patient Protection and Affordable Care Act (PPACA) (Pub.L.No. 111-148, 124 Stat.119), the so-called “Obamacare,” and its 906 pages of provisions.