Ryan Tracy asks:

[T]he [Obama] administration’s cheapest course of action, a challenge to Prop 19 in the courts, looks doomed. Constitutional-law experts say California has no obligation to have the same criminal laws as the federal government, so Holder’s Justice Department can forget any lawsuit compelling the state to make marijuana use a crime. “Arguably a state could decriminalize murder” and the federal government could not force it to do otherwise, says Ruthann Robson, a constitutional-law professor at the City University of New York. On the legalization question, then, Holder’s hands are tied.

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