The Forum has just published a series of articles on the 2006 election. You can find them here. They include:
Steven E. Schier, "Frustrated Ambitions: The George W. Bush Presidency and the 2006 Elections"
John J. Pitney Jr., "The Midterm: What Political Science Should Ask Now"
William F. Connelly Jr., "Wall vs. Wave?"
Michael P. McDonald, "Rocking the House: Competition and Turnout in the 2006 Midterm Election"
Elaine C. Kamarck,"Assessing Howard Dean's Fifty State Strategy and the 2006 Midterm Elections"
David Menefee-Libey, "Big Deal: The 2006 Midterm Elections, the Progressive Project, and the Reagan-Bush Revolution"
Jonathan Bernstein, Rebecca E. Bromley, and Krystle T. Meyer, "Republicans and Golf, Democrats and Outkast: Or, Party Political Culture from the Top Down"
And last but not least:
Philip A. Klinkner and Thomas F. Schaller, "A Regional Analysis of the 2006 Midterms"