2.6: Elections
Read each of the pages under the "Campaigns and Elections" header. Pay close attention to the "Winning an Election: Majority, Plurality, and Proportional Representation" subsection in the "Elections" page, as this will help explain why the U.S. has a two-party system.
Read pages 13-19 and 75-88. Compare and contrast the turnout rates for different countries and consider the variables (social, economic, and political) which contribute to a country's propensity for its citizens to exercise (or not exercise) their right to vote.