MAP: Partisan Gerrymandering Advantage (IMAGE)

University of Vermont

MAP: Partisan Gerrymandering Advantage

Caption

This map shows a shifting kaleidoscope of partisan advantage, for US Congressional voting districts, since 1972. The size of each state is adjusted according to its number of seats in 2012. "The 2003 Texas redistricting is striking," notes UVM's Greg Warrington who created a new mathematical tool, a declination, used to measure the gerrymandering shown here. States without at least one seat won by each party are shown in gray.

Credit

courtesy Greg Warrington, UVM)

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