Congress is a research area that focuses on studying the legislative branch of government, particularly in the United States. Researchers in this field analyze the functioning of Congress, including its structure, powers, and decision-making processes. They may also study the behavior of members of Congress, the role of political parties, and the impact of interest groups on legislative outcomes. Additionally, researchers in this area may examine the relationship between Congress and other branches of government, as well as its influence on public policy. Overall, the study of Congress is important for understanding how laws are made and how political power is distributed in a democratic system.