As the Supreme Court has repeatedly explained, the Necessary and Proper Clause does not expand the scope of Congress's enumerated powers.

WSJ: Barnett and Foley: The Nuts and Bolts of the ObamaCare Ruling

Judge Vinson flatly rejected the administration's attempt to escape the restrictions of the Commerce Clause by appealing to the Necessary and Proper Clause.

WSJ: Barnett and Foley: The Nuts and Bolts of the ObamaCare Ruling

Recognizing the vulnerability of relying on the Commerce Clause alone, the Obama administration in the Florida case shifted its emphasis to the Necessary and Proper Clause of the Constitution.

WSJ: Barnett and Foley: The Nuts and Bolts of the ObamaCare Ruling