List of landmark court decisions in the United States
National Federation of Independent Business v. Sebelius,  The Patient Protection and Affordable Care Act's expansion of Medicaid is unconstitutional as-written—it is unduly coercive to force the states to choose between participating in the expansion or forgoing all Medicaid funds. In addition, the individual health insurance mandate is constitutional by virtue of the Taxing and Spending Clause in Article One, Section 8, Clause 1 (though not by the Commerce Clause or the Necessary and Proper Clause).