President Biden’s first two years with a narrow Democratic Congress brought big ambitions and substantial new policy. As we now shift to a Republican House, how should we put Biden’s first two years in context? To help, Matt Grossmann talks with Casey Dominguez of the University of San Diego, who has wide ranging expertise on presidents, Congress, and the political parties. Her work has covered presidential honeymoons, judging presidents on their own terms, and how parties decide primary elections. She’s a big picture thinker about the state of each political party and the role of political science in understanding current events.