We will extend the legis-graph dataset by adding US Congressional districts to the graph, utilizing neo4j-spatial to index the geometries of these districts. We will then connect Neo4j to Mapbox, a mapping framework, to create an interactive geographical visualization in the browser. This extension allows for powerful graph traversal queries to answer questions like "What are the topics of bills certain legislators are sponsoring?" and "Who is the most influential Senator in Congress with influence over certain topics?". The dataset models US Congress as a graph, enabling the transformation of the data model easily as requirements change. By indexing nodes that contain vector geometries specified as properties on the nodes, we can query the spatial component of the data using an HTTP request to the REST API exposed by the neo4j-spatial plugin. This enables the creation of an interactive map interface that allows users to query legis-graph based on spatial geometries and visualize the results as part of the map. The extension also integrates with Mapbox, allowing users to click on the map to find the closest Congressional district and query legis-graph for information about that legislator, including the Committees on which they serve and the topics of bills referred to those committees.