What is Cook Partisan Voting Index?
[[File:2020 Cook PVI.svg|thumbnail|320px|A map of the Cook PVI in each state. Blue is used for the Democrats, while red is used for the Republicans. Darker colours indicate that a state has a heavy lean toward one party or the other, whereas lighter colours indicate a less substantial lean.]] The '''Cook Partisan Voting Index''' is the unit used to calculate how much a particular [[List of U.S. states|state]] or [[congressional district]] leans towards each [[political party]]. == By state == All 50 states in the [[United States of America|United States]] lean either towards the [[Democratic Party (United States)|Democrats]] or [[Republican Party (United States)|Republicans]]. The most Democratic-leaning state, according to the CPVI, is [[Vermont]], which is D+16 on the CPVI scale (meaning that, in a normal election, the Democratic candidate should start with an advantage of approximately 31 points over the Republican candidate there). On the other hand, the most Republican-leaning state, [[Wyoming]], has a CPVI score of R+25, meaning that the Democrat will have a 51% edge against their Republican opponent in a neutral election. [[Category:Politics of the United States]] {{politics-stub}}