State legislatures compared by extent of electoral competitiveness in 2010

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2010 Competitiveness Overview
Competitiveness logo 4.jpg
Primary competition (state comparison)
Incumbents with no primary challenge in 2010
Incumbents with no challenges at all in 2010
Incumbents defeatedVictorious challengers
Major party challengers (state comparison)
List of candidates with no competition
Open seats (state comparisons)
Impact of term limits on # of open seats
Long-serving senatorsLong-serving reps
Star bookmark.png   Results Comparisons  Star bookmark.png
Chart Comparing 2011 ResultsComparisons Between Years
Party differences
Competitiveness Index
2010 State Legislative Elections
Competitiveness Studies from Other Years
200720092011201220132014

This chart captures the ranking that a state legislature received on all three factors in this Election Competitiveness Index.

  • The first column, "Primary Contests," ranks states against each other based on the percentage of incumbents who had a primary challenger.
  • The second column, "Major Party Competition," ranks states against each other based on the percentage of major party candidates on the November 2 ballot with a major party challenger.
  • The third column, "Open Seats," contrasts states based on the percentage of incumbents who ran for re-election in 2010.
  • The fourth column is an arithmetical average of the state's scores on the all three factors.
Competitiveness logo 4.jpg
State legislatures compared by electoral competitiveness.png

Note on ranking system: In each case, 1 represents the most electorally competitive environment, and 46 represents the least electorally competitive environment. (46 is the highest relevant number in 2010, because there are state legislative elections in 46 states in 2010.)

Legend:      States with state legislative term limits






State legislature Primary contests Major party competition Open seats Overall rank
Alabama 9 41 21 22
Alaska 23 30 34 31
Arizona 5 16 4 3
Arkansas 41 44 3 33
California 37 6 7 11
Colorado 45 10 12 21
Connecticut 44 14 33 36
Delaware 35 32 35 44
Florida 19 37 9 17
Georgia 16 43 19 28
Hawaii 6 7 31 6
Idaho 10 36 40 30
Illinois 25 28 43 39
Indiana 26 26 42 37
Iowa 39 22 22 29
Kansas 18 33 42 34
Kentucky 21 35 44 43
Maine 43 2 13 14
Maryland 2 15 23 5
Massachusetts 38 39 20 40
Michigan 13 3 1 2
Minnesota 42 4 27 24
Missouri 28 34 5 20
Montana 30 18 6 12
Nebraska 3 20 24 7
Nevada 20 8 2 4
New Hampshire 1 1 11 1
New Mexico 15 38 46 42
New York 17 12 28 13
North Carolina 11 23 32 19
North Dakota 46 13 14 25
Ohio 27 9 10 8
Oklahoma 29 40 18 32
Oregon 32 5 37 27
Pennsylvania 31 29 35 38
Rhode Island 7 24 29 15
South Carolina 14 46 38 41
South Dakota 36 21 8 18
Tennessee 34 31 40 45
Texas 22 42 45 46
Utah 8 11 30 10
Vermont 40 27 25 35
Washington 33 25 17 26
West Virginia 4 17 26 9
Wisconsin 24 19 16 16
Wyoming 12 45 15 23

See also