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Annual State Legislative Competitiveness Report: Vol. 9, 2019
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Updated December 6, 2019
Ballotpedia's 9th Annual State Legislative Competitiveness Report analyzes all 538 state legislative elections that took place in November 2019. Key findings included:
Only four states hold state legislative elections during odd-numbered years: Louisiana, Mississippi, New Jersey, and Virginia. This year, both chambers in Louisiana, Mississippi, and Virginia were up for election, along with the New Jersey General Assembly. The last time all of these chambers were up for election at the same time was 2015. The table below shows competitiveness statistics for each odd-year election dating back to 2011.
This report is organized into four sections. They are:
Competitiveness overview
Competitiveness refers to the presence of choice throughout the election cycle. A greater level of competitiveness means voters have the ability to make more decisions. A lower level of competitiveness equals fewer choices.
Ballotpedia uses three factors to determine state legislative competitiveness:
- Open seats, those where no incumbents filed to run;
- Incumbents in contested primaries, those who could potentially lose to challengers; and,
- Major party competition — where Democrats and Republicans meet head-to-head in the general election.
These percentages are averaged to produce a State Legislative Competitiveness Index, which can range from zero (least competitive) to 100 (most competitive).
The table below shows the Competitiveness Indices from 2011 to 2019 as well as the three factors used to calculate the indices. Click here to read more about Ballotpedia's methodology used when calculating Competitiveness Indices.
State legislative Competitiveness Indices, 2011-2019 | ||||||||
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2011 | 2013 | 2015 | 2017 | 2019 | AVERAGE | |||
Competitiveness Index | 28.1 | 30.3 | 25.4 | 34.9 | 30.8 | 29.9 | ||
Open seats | 17.0% | 6.8% | 14.7% | 9.1% | 19.5% | 13.4% | ||
Inc. in contested primaries | 21.4% | 11.7% | 23.3% | 16.0% | 28.9% | 20.3% | ||
Seats with major party competition | 46.0% | 72.3% | 38.3% | 79.5% | 44.1% | 56.0% |
Open seats
There were 538 state legislative seats up for election in November 2019 in four states. Of that total, there were 105 open seats, guaranteeing at least 20% of all seats would be won by newcomers. This was the highest number and percentage of open seats since Ballotpedia began gathering data in 2011.
Ballotpedia uses the number and percentage of open seats to help determine the overall competitiveness of an election cycle. A greater number of open seats guarantees more newcomers entering legislatures and typically results in more candidates running for office. A smaller number of open seats guarantees fewer newcomers and typically results in fewer candidates running for office.
In 2019:
Open state legislative seats, 2019 | ||||||||||||||||||||||||
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Chamber | Seats | |||||||||||||||||||||||
Democratic | Republican | Other | Total | |||||||||||||||||||||
# | % | |||||||||||||||||||||||
House | 407 | 29 | 42 | 2 | 73 | 17.9% | ||||||||||||||||||
Senate | 131 | 9 | 23 | 0 | 32 | 24.4% | ||||||||||||||||||
Total | 538 | 38 | 65 | 2 | 105 | 19.5% |
Historical comparison
The chart below shows a breakdown of open seats from 2011 to 2019. The "Other" value includes seats left open by minor party and independent officeholders.
Incumbents in contested primaries
There were 538 state legislative seats up for election in November 2019 in four states. Overall, 433 incumbents filed for re-election and were running at the time of their respective primaries. Of that total, 125 incumbents faced contested primaries, representing 29% of all incumbents who filed for re-election. This was the largest number and percentage of contested primaries since Ballotpedia began gathering data in 2011.
Ballotpedia uses the number and percentage of incumbents in contested primaries to help determine the overall competitiveness of an election cycle. A larger number of contested primaries indicates more opportunities for voters to elect a non-incumbent to office. A smaller number indicates fewer of those opportunities.
In 2019:
State legislative incumbents in contested primaries, 2019 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chamber | Seats | |||||||||||||||||||||||
Democratic | Republican | Total[1] | ||||||||||||||||||||||
Filed | Cont. | % | Filed | Cont. | % | Filed | Cont. | % | ||||||||||||||||
House | 407 | 158 | 49 | 31.0% | 172 | 41 | 23.8% | 334 | 91 | 27.2% | ||||||||||||||
Senate | 131 | 43 | 19 | 44.2% | 56 | 15 | 26.8% | 99 | 34 | 34.3% | ||||||||||||||
Total | 538 | 201 | 68 | 33.8% | 228 | 56 | 24.6% | 433 | 125 | 28.9% |
Historical comparison
The chart below shows a breakdown of incumbents in contested primaries from 2011 to 2019.
All contested primaries
This section shows figures on all contested state legislative primaries, regardless of whether an incumbent was present. There were 498 state legislative districts up for election nationwide, creating 850 possible primaries. Of that total, there were 215 contested primaries, meaning 25% of all primaries were contested. This was the highest number and percentage of contested primaries since Ballotpedia began gathering data in 2011.
In 2019:
Contested state legislative primaries, 2019 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chamber | Districts | |||||||||||||||||||||||
Democratic | Republican | Top-two/four | Total | |||||||||||||||||||||
# | % | # | % | # | % | # | % | |||||||||||||||||
House | 367 | 45 | 17.2% | 35 | 13.5% | 65 | 61.9% | 145 | 23.1% | |||||||||||||||
Senate | 131 | 22 | 23.9% | 21 | 22.8% | 27 | 69.2% | 70 | 31.4% | |||||||||||||||
Total | 498 | 67 | 18.9% | 56 | 15.9% | 92 | 63.9% | 215 | 25.3% |
The chart below shows a breakdown of contested primaries from 2011 to 2019.
Major party competition
There were 538 state legislative seats up for election in November 2019 in four states. Of that total, 301 (56%) were uncontested and had no major party competition. The remaining 237 (44%) were contested by both major parties. This was the second-largest percentage of seats with no major party competition since Ballotpedia began gathering data in 2011.
Ballotpedia uses the level of major party competition to help determine the overall competitiveness of an election cycle. A larger number of seats without major party competition indicates fewer options on the ballot. A smaller number indicates more options.
In 2019:
Major party competition in state legislative elections, 2019 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chamber | Seats | |||||||||||||||||||||||
Uncontested | Contested | |||||||||||||||||||||||
Only Democrats | Only Republicans | Total | ||||||||||||||||||||||
# | % | # | % | # | % | # | % | |||||||||||||||||
House | 407 | 105 | 25.8% | 113 | 27.8% | 219 | 53.8% | 188 | 46.2% | |||||||||||||||
Senate | 131 | 37 | 28.2% | 45 | 34.4% | 82 | 62.6% | 49 | 37.4% | |||||||||||||||
Total | 538 | 142 | 26.4% | 158 | 29.4% | 301 | 55.9% | 237 | 44.1% |
Historical comparison
The chart below shows a breakdown of major party competition in state legislative elections from 2011 to 2019.
See also
- State legislative elections, 2019
- Impact of term limits on state legislative elections in 2019
- Open seats in state legislative elections, 2019
- Contested state legislative primaries, 2019
- State legislative incumbents in contested primaries, 2019
- Major party competition in state legislative elections, 2019
- Incumbents defeated in state legislative elections, 2019
- Primary election competitiveness in state government, 2019
Footnotes
- ↑ Totals may include minor party or independent officeholders.
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