"The New Jersey state legislature is considering a sick leave bill that, if passed into law in its current form, would not preempt the growing patchwork of local laws passed in the state. Yet, in a lawsuit [recently] filed ... in Mercer County Superior Court, several New Jersey business associations claim that existing state laws (e.g., New Jersey's Family Leave Act, Family Leave Insurance Law, and Temporary Disability Benefits Act) already preempt local sick leave laws (Trenton's, specifically). The Complaint also alleges that such local laws violate various clauses of the United States and New Jersey Constitutions."