Key Races to Watch in Kentucky, Pennsylvania, and Florida Primaries.

Kentucky Republicans picked Daniel Cameron as their nominee for the gubernatorial race against Democratic Gov. Andy Beshear. Philadelphia nominated Cherelle Parker as the Democratic candidate for mayor. Democrats won a special election in Pennsylvania's state House, helping them keep their wafer-thin majority. Donna Deegan, a Democrat, defeated GOP candidate Daniel Davis in the Jacksonville mayoral runoff. The race served as a reality check on Republicans' strength in Florida.