"If states want to legalize medical marijuana, I think that's a state's right," Cain said while campaigning in Iowa. "Because one of my overriding approaches to looking at all of these issues—most of them belong at the state, because when you do something federally...you try to force one-size-fits-all."
In my dreams, the Republican nominee criticizes Barack Obama, who made similar noises when he was running for president, for flouting the 10th Amendment in this area.
Perry's predecessor as governor of Texas likewise took a federalist position on medical marijuana when he was running for president. His follow-through was about as good as Obama's.
[Thanks to Tom Angell for the tip.]