Scalia v. Thomas

From The American Spectator:

Yesterday the Supreme Court handed down its decision in Gonzales v. Raich (what was Ashcroft v. Raich, before the U.S. Attorney General was replaced). The case turned on a question of federalism: Does the federal government have the constitutional authority to prosecute individuals under the Controlled Substances Act even for conduct that is legal under a state's medical marijuana laws -- in this case, California's?