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Partisan Polarization in Congress and the Historical Shift in the Bases of U.S. Political Parties I.The Polarization of the American Party System, 1960-early.

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Presentation on theme: "Partisan Polarization in Congress and the Historical Shift in the Bases of U.S. Political Parties I.The Polarization of the American Party System, 1960-early."— Presentation transcript:

1 Partisan Polarization in Congress and the Historical Shift in the Bases of U.S. Political Parties I.The Polarization of the American Party System, 1960-early 1980s II. The Regional Shift of the American Political Parties III. The Republican Presidential Majority IV. The Rise and Fall of Split-level Dealignment V. The Polarization of Congress

2 Map 1: Regions Used in This Article

3 Map 2: Electoral College Results,

4 Map 3: House of Representatives by Party (79 th Congress)

5 Map 4: 1948 Electoral College Results

6

7 Map 6: 1968 Electoral College Results Black = Democrat Humphrey White = Republican Nixon Gray = Independent Wallace

8 Map 7: 2004 Electoral College Results Gray= Democrat Kerry White=Republican Bush Source:

9 Source: Congressional Quarterly Almanac 1990, 2005

10 Maps 3 + 8: Comparison of Democratic Majorities of and (79 th and 99 th Congresses) Map 4 Map 8

11 Maps 8 + 9: Comparison of the and Congresses (99 th and 105 th ) Map 8: Democratic Majority Map 9: Republican Majority

12 Maps : The Different Republican Majorities and Map 9: 105 th House Map 10: 83 rd House

13 Source: Congressional Quarterly Almanac 2005

14 Source: Congressional Almanac, 2005

15 Graph 5: Number of Unanimous Votes by One Party against a Majority of the Other in each House of Congress, Source: Congressional Quarterly Almanac, 2005

16 Map 11: House Seats Turning from Republican to Democratic in 2006 Dark blue = 3-5 Democratic seats gained Light blue = 1-2 Democratic seats gained Source:


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