Bloomberg Law: (Audio)

(Bloomberg) -- Dolores Gregory, a reporter for Bloomberg BNA, discusses, a federal appeals court ruling, which says that Puerto Rico's alternative minimum tax is unconstitutional, affirming a lower court ruling that bars the enforcement of the tax against Wal-Mart Puerto Rico. And, Erik Gordon, a professor at the University of Michigan Ross School of Business, discusses another victory for General Motors in its ongoing ignition-switch related litigation, after a Texas jury decided that the car maker wasn't liable for a 2011 accident that left a driver with brain injuries. While this verdict is only the latest in a string of victories for GM, the legal battle could likely stretch on for years. They speak with Bloomberg Law hosts June Grasso and Michael Best on Bloomberg Radio's "Bloomberg Law."