C-SPAN: "Evolution of Congress"

Watch this video, which features a panel discussion with members of the American Political Science Association. The panel discusses the transformation of Congress and the influences of the two-party system. Among the other topics they address are the impact of changing demographics on party affiliation, sociological influences on political habits, and the nature of structural changes. After watching the video, think about Congress' evolution over time. Has it changed for better or worse? Why?