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Changing Congress

Changing Congress. Elections. The 111 th Congress. The 112 th Congress. 111 th Congress 258 Democrats. 112 th Congress 193 democrats. 111th. 112th. The Congress (=House of Representatives). 435 Representatives since the Apportionment Act of 1911 Irrespective of population growth.

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Changing Congress

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  1. Changing Congress Elections

  2. The 111th Congress

  3. The 112th Congress

  4. 111th Congress 258 Democrats 112th Congress 193 democrats

  5. 111th 112th

  6. The Congress (=House of Representatives) 435 Representatives since the Apportionment Act of 1911 Irrespective of population growth

  7. Changing Congress Redistricting in response to population change The population of Texas increased by 25% between 2000 and 2010 – from 20 million to 25 million

  8. One Person, One Vote: The Equal Population Requirement

  9. 112th Congress, 32 seats

  10. Austin Houston San Antonio

  11. 113th Congress, 36 seats

  12. Minority Vote Dilution and Section 2 of the Voting Rights Act

  13. Redistricting ProcessGeneral Redistricting Principles • One person, one vote • Minority voting rights • County line rule for house districts • Contiguity • Compactness

  14. Counties (containing VTDs) by color with 112th Congressional districts in outline

  15. Counties (containing VTDs) by color with 112th Congressional districts in outline

  16. • Contiguity • Compactness

  17. Gerrymandering

  18. Census data

  19. VTD – Voting Tabulation Districts

  20. Election data • The Voting Tabulation District Voting precincts become TVTDs VTD 1 Precinct 1 Precinct 4 Precinct 2 VTD 4 VTD 2 Precinct 3 VTD 3

  21. Results of Change • Consistent geography for apples-to-apples demographic comparisons over time • Integrates elections & voter information with census geography • VTD boundaries = tabulation block boundaries

  22. Voting Tabulation District Data

  23. Texas Redistricts based on the 2010 US Census

  24. Plan C185 • June 20 2011 plan put forward by Texas Legislature • See the lab for the shapefile • One example: Lloyd Doggett

  25. The restructuring of selected districts under C185 (the state legislature’s plan)

  26. Plan C220 • November 26, 2011 plan announced by the US District Court for the Western District of Texas. • This was vacate by the US Supreme Court on January 20, 2012 • See the lab for the shapefile

  27. C185 Black lines C220 Red lines

  28. Plan C235 • The interim congressional plan ordered by the Western District Court

  29. C185 Black lines C235 Purple lines

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