On February 24, the 7th circuit heard oral argument in Libertarian Party of Illinois v Scholz, 16-1667. The issue is the unique Illinois law that requires newly-qualifying parties, but not old parties, to run a full slate of candidates. The U.S. District Court had struck it down last year and the state had appealed.
The hearing went well for the Libertarian Party. The judges are Frank H. Easterbrook, Michael S. Kanne, and Diane S. Sykes. UPDATE: anyone can listen to the 30-minute oral argument using this link, which is provided by the Seventh Circuit. It gets interesting approximately 13 minutes into the argument.