Overruling Austin and McConnell?

Via Marty Lederman at SCOTUSBlog comes word that the appellee in FEC v. Wisconsin Right to Life will ask the Supreme Court to "reconsider" the holding in McConnell v. FEC upholding the constitutionality of a requirement that corporations to use separate, segregated PAC funds to pay for election-related advertising. If this is on the table, presumably the analogous state-law holding in Austin v. Michigan Chamber of Commerce will be too. This will make for some long briefs -- the appellees are getting 70 pages -- and an interesting decision. Stay tuned.