The aim of this workshop is to provide a forum for exchange between federal agencies and Congressional offices regarding domestic issues within the Water-Energy nexus. Affiliations of invited panelists include the EPA, NSF, DOE, DOI (USFWS, USGS, BLM), State Department and Congressional staffers. The goal is to identify shared challenges, opportunities, and possibilities for inter-branch and interagency cooperation. The event is also open to AAAS Science and Technology Policy Fellows.