There was a lot of buzz when Philadelphia passed a soda tax, and there's early evidence it's led to its intended aim of reducing sugary drink consumption. But further expansion of the pre-K programs the tax is intended to fund is in limbo. That's because the American Beverage Association and local businesses are suing to to abolish the tax. Oral arguments in the case are scheduled for April 5. The case could end up in the state's Supreme Court. Copyright 2017 NPR. To see more, visit http://www.npr.org/.