The Obama administration could sue to block the legal markets from operating, on the grounds that actively regulating an illegal substance conflicts with federal drug law.

NPR: Wash. Vows To Try To Keep Weed In State _ But How?

The New York police's story -- as related by spokesman Christopher Pisano -- is that officers were called Thursday to her abode in Manhattan's theater district after her building manager reported the 27-year-old was smoking an "illegal substance" in the lobby.

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So it was into a campaign starved of substance that the issue of illegal immigration inserted itself.

ECONOMIST: The California governor's race