Those in the campaign finance reform community interested in the question of overturning Buckley to allow for greater regulation should check out The Reform Reporter put out by a pro-reform group, “The Rest of Us.”
The Reporter’s top story is on Homans v. City of Albuquerque. A federal district court had upheld the city’s spending limits law, but the Tenth Circuit reversed that determination. You can find the city’s cert petition on the website of the National Voting Rights Institute (co-counsel for the city) here.
I predict that the Supreme Court won’t grant the petition, but it is fairly likely grant a petition in Landell v. Sorrell, 382 F.3d 91 (2d Cir. 2004) if that case is not taken en banc by the Second Circuit. There is a procedural hurdle in Sorrell, because the case is remanded to the district court, but it essentially holds that Buckley allows for spending limits in appropriate circumstances.