Cook Partisan Voting Index

Map of 2020–2024 Cook PVI for all voting entities in the 2028 United States presidential election (states, federal district, congressional districts of Maine and Nebraska)

Map legend:
  State or district has a Cook PVI of D+10 or greater
  State or district has a Cook PVI between D+5 and D+10
  State or district has a Cook PVI between D+2 and D+5
  State or district has a Cook PVI between EVEN and D+2
  State or district has a Cook PVI between EVEN and R+2
  State or district has a Cook PVI between R+2 and R+5
  State or district has a Cook PVI between R+5 and R+10
  State or district has a Cook PVI of R+10 or greater

The Cook Partisan Voting Index, abbreviated PVI or CPVI, is a measurement of the partisanship of a U.S. congressional district or U.S. state. This partisanship is indicated as lean towards either the Republican Party or the Democratic Party, compared to the nation as a whole, based on how that district or state voted in the previous two presidential elections.