Welcome to the SAGE companion site for The Logic of American PoliticsEleventh Edition!

Why does the American political system work the way it does?

After observing the strains of intense partisanship and divided government, many Americans are wondering what logic, if any, can be found in politics. With both sides of the political spectrum being so different from one another and the scales often tipping in the favor of the opposing party by a fraction of a percentage point, how can anyone work the system to their advantage?

With fresh analysis of the 2022 midterm election results, the Eleventh Edition of bestselling textbook The Logic of American Politics provides students with the tools they need to make sense of our government today. Weaving together historical context, contemporary politics, and a "toolkit" of institutional design concepts, the authors build an understanding of political institutions and practices as imperfect solutions to collective action problems.

This site features an array of free resources you can access anytime, anywhere.


We gratefully acknowledge Samuel Kernell, Gary C. Jacobson, Thad Kousser, Lynn Vavreck, and Timothy R. Johnson for writing an excellent text and creating the materials on this site.


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