Sacred Speech: analyzing the influence of congressional leadership on religious rhetoric

Religious language plays a pivotal role in shaping political behavior and attitudes. This study investigates how representatives utilize religious rhetoric when addressing the House floor and their constituents, and how this language is influenced by congressional leadership. The inauguration of openly religious Mike Johnson as House Speaker in 2023 provides a unique case to explore these dynamics. Using difference-in-differences and triple difference models, we analyze House speeches and newsletters from before and after Johnson became House Speaker to assess changes in religious speech between Republican and Democratic representatives. Our findings reveal a significant increase in newsletters using religious language sent out by Republicans after Johnson became Speaker, while religious speech on the House floor remains unchanged. Overall, our findings contribute to the literature on the relationship between religion, partisanship, and Congressional leadership, highlighting the potential influence of the Speaker of the House on religious communication to constituents.