From Ballotpedia

2010 Competitiveness Overview
Primary competition (state comparison)
Incumbents with no primary challenge in 2010 Incumbents with no challenges at all in 2010 Incumbents defeated • Victorious 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 senators • Long-serving reps
Results Comparisons
Chart Comparing 2011 Results • Comparisons Between Years • Party differences
Competitiveness Index
2010 State Legislative Elections
Competitiveness Studies from Other Years
2007 • 2009 • 2011 • 2012

6,125 seats of the country's 7,384 state legislative seats are up for election in the 2010 state legislative elections.

This includes:

• 1,167 (59.2%) of the country's 1,971 state senate seats.
• 4,958 (91.6%) of the country's 5,413 state house seats.

This page is a list of these four groups:

Democratic candidates for state senate with no Republican Party opponent
Democratic candidates for state representative with no Republican Party opponent
Republican candidates for state senate with no Democratic Party opponent
Republican candidates for state representative with no Democratic Party opponent

Most of these candidates have no challenger at all, but some of them do have a challenger from a minor party candidate or an independent candidate.

Democrats with no Republican opposition:

• 943 Democratic candidates for state legislature have no Republican opponent in November. This includes:

• 141 Democratic candidates for state senate.
• 802 Democratic candidates for state house.

Republicans with no Democratic opposition:

• 1057 Republican candidates for state legislature have no Democratic opponent in November. This includes:

• 179 Republican candidates for state senate.
• 878 Republicans for state house.

See also: State-by-state chart of candidates with(out) major party opposition

State senate elections

2010 State senate elections
AL • AK • AR • AR • CA • CO • CT • DE • FL • GA • HI • ID • IL • IN • IA • KY • ME • MD • MA • MI • MN • MO • MT • NE • NV • NH • NY • NC • ND • OH • OK • OR • PA • RI • SD • TN • TX • UT • VT • WA • WV • WI • WY
Parties with candidates
Impact of term limits
Successful challengers
Defeated incumbents
State house elections
State senate elections
State legislative elections

See also: State senate elections, 2010

1,167 state senate seats are up for election in 2010. 1,143 of these seats are partisan seats (24 seats -- the 24 seats that were up for election in Nebraska's non-partisan unicameral -- are non-partisan).

In 320 of these state senate contests, there is a major party candidate with no major party opposition. That comes to 28.0% of the 1,143 seats that feature partisan contests.

• 141 Democratic candidates for state senate do not have a Republican opponent.
• 179 Republican candidates for state senate do not have a Democratic opponent.

Unopposed Democrats

Unopposed Republicans

State house elections

State house elections
AL • AK • AR • AR • CA • CO • CT • DE • FL • GA • HI • ID • IL • IN • IA • KS • KY • ME • MD • MA • MI • MN • MO • MT • NV • NH • NM • NY • NC • ND • OH • OK • OR • PA • RI • SC • SD • TN • TX • UT • VT • WA • WV • WI • WY
Parties with candidates
Impact of term limits
Successful challengers
Defeated incumbents
State house elections
State senate elections
State legislative elections

See also: State house elections, 2010

4,958 state house seats are up for election in 2010.

In 1,680, or 33.9%, of these state house contests, there is a major party candidate with no major party opposition.

• 802 Democratic candidates for state house do not have a Republican opponent.
• 878 Republicans for state house do not have a Democratic opponent.

Unopposed Democrats

Unopposed Republicans

v • d • e State legislatures Legislatures Alabama (H, S) · Alaska (H, S) · Arizona (H, S) · Arkansas (H, S) · California (A, S) · Colorado (H, S) · Connecticut (H, S) · Delaware (H, S) · Florida (H, S) · Georgia (H, S) · Hawaii (H, S) · Idaho (H, S) · Illinois (H, S) · Indiana (H, S) · Iowa (H, S) · Kansas (H, S) · Kentucky (H, S) · Louisiana (H, S) · Maine (H, S) · Maryland (H, S) · Massachusetts (H, S) · Michigan (H, S) · Minnesota (H, S) · Mississippi (H, S) · Missouri (H, S) · Montana (H, S) · Nebraska · Nevada (A, S) · New Hampshire (H, S) · New Jersey (GA, S) · New Mexico (H, S) · New York (A, S) · North Carolina (H, S) · North Dakota (H, S) · Ohio (H, S) · Oklahoma (H, S) · Oregon (H, S) · Pennsylvania (H, S) · Rhode Island (H, S) · South Carolina (H, S) · South Dakota (H, S) · Tennessee (H, S) · Texas (H, S) · Utah (H, S) · Vermont (H, S) · Virginia (H, S) · Washington (H, S) · West Virginia (H, S) · Wisconsin (A, S) · Wyoming (H, S) 2012 State legislative elections (2012) • Election Results (2012) • Primary dates and filing requirements • 2012 Session Dates • Impact of term limits on 2012 elections • Official Lists of Candidates • List of candidates on 2012 ballot • State Session Topics 2011 State legislative elections (2011) • Election Results (2011) • State Senate elections (2011) • State House elections (2011) • Special elections (2011) • Primary dates and filing requirements • 2011 Session Dates • List of candidates on 2011 ballot • Candidates removed from 2011 ballot • Impact of term limits on 2011 elections • Incumbents defeated in 2011's state legislative elections • Official Lists of Candidates • Election Analysis 2010 State legislative elections (2010) • Election Results (2010) • State Senate elections (2010) • State House elections (2010) • Special elections • Primary dates • Dates of sessions • Impact of term limits on 2010 elections • Political parties with candidates in the 2010 legislative elections • Official lists of state legislative candidates, 2010 • Competitiveness Index • Election Projections • 2010 Session Dates 2009 State legislatures in 2009 • State legislative special elections in 2009 Features of state legislatures Analysis of 2011-2012 standing committees • How vacancies are filled in state legislatures • States with a full-time legislature • State legislatures with term limits • Comparison of state legislative salaries • When state legislators assume office after a general election • Population represented by state legislators • State constitutional articles governing state legislatures • State legislative sessions • Resign-to-run law • State Legislative Tracker • Official names of state legislatures State senates Length of terms of state senators • State senators • Partisan composition of state senates • State senators sorted by year first elected to senate • State senate elections State houses Length of terms of state representatives • State representatives • Partisan composition of state houses • State representatives sorted by year first elected • State house elections Leadership positions President of the Senate • President Pro Tempore • Senate Majority Leader • Senate Minority Leader • House Majority Leader • House Minority Leader • State Speaker of the House