How does the Fourteenth Amendment apply to public sector employees who have a property interest in the terms or conditions of their employment?

The Fourteenth Amendment's due-process guarantee applies to public employees who have "a property interest" in the terms or conditions of their employment. Bd. of Regents v. Roth, 408 U.S. 564, 576 (1972). These interests are created "by existing rules or understandings that stem from an independent source such as state law rules or understandings that secure certain benefits and that support claims of entitlement to those benefits." Id. at 577; see also Skelly v. State Pers. Bd., 15 Cal. 3d 194, 207-08 (1975).