Incumbency adds a layer of advantage on top of this party dominance. But rather than foster an environment in which members of Congress feel free to buck popular sentiment and wrestle seriously with the problems confronting the country, it reinforces the ideological divide between the parties.

The country has sorted itself ideologically into the two political parties, and those partisan attachments have hardened in recent years. It will take an extraordinary event and act of leadership to break this partisan divide. I thought 9/11 might provide such an opportunity, but it was not seized.

Incumbents are safe, but party majorities are not. This fosters symbolic votes, message politics and little serious legislating in Congress.

Thomas E. Mann Quotes