ADVICE ON FEDERALISM for Fred Thompson and Rudy Giuliani: “Giuliani and Thompson claim they want to reinvigorate discussion of the virtues of federalism. Terrific. But you can’t argue that states should be free to make their own policies without federal interference — except when you happen to disagree with them. You can be a federalist, or you can be an ardent drug warrior. But you can’t be both.” Indeed.