2018 United States Senate election in Indiana

The 2018 United States Senate election in Indiana took place on November 6, 2018, along with other elections to the United States Senate and House of Representatives and various state and local elections. Incumbent Democratic Senator Joe Donnelly lost re-election to a second term to Republican Mike Braun by a 6% margin. This was the second consecutive election for this seat where the incumbent was defeated and/or the seat flipped parties.

2018 United States Senate election in Indiana

← 2012November 6, 2018 (2018-11-06)2024 →
Turnout50.42% Decrease
 
NomineeMike BraunJoe Donnelly
PartyRepublicanDemocratic
Popular vote1,158,0001,023,553
Percentage50.73%44.84%

Braun:      40–50%      50–60%      60–70%      70–80%
Donnelly:      40–50%      50–60%      60–70%

U.S. senator before election

Joe Donnelly
Democratic

Elected U.S. Senator

Mike Braun
Republican

This was one of ten Democratic-held Senate seats up for election in a state won by Donald Trump in the 2016 presidential election. In 2017, Politico described the race as "possibly the GOP's best opportunity to seize a Senate seat from Democrats" in the 2018 elections.[1] The primary election was held on May 8, 2018.[2] In October 2018, RealClearPolitics rated the race a toss-up between the Democratic and Republican nominees, with the Libertarian receiving a poll average of 6%.[3]

Background

In 2012, Joe Donnelly was elected to the Senate with 50% of the vote to Republican nominee Richard Mourdock's 44%. In the 2016 presidential election, Republican nominee Donald Trump won Indiana with about 56.5% of the vote to Democratic nominee Hillary Clinton's 37.5%.[4][5]

Democratic primary

Candidates

Nominee

Withdrew

  • Martin Del Rio, Iraq War veteran[7][8]

Endorsements

Joe Donnelly
47th Vice President of the United States
United States Senator
Organization

Results

Democratic primary results[14]
PartyCandidateVotes%
DemocraticJoe Donnelly (incumbent) 284,621 100.00%
Total votes284,621 100.00%

Republican primary

Candidates

Nominee

Eliminated in the primary election

Declined

Withdrawn

Endorsements

Luke Messer
U.S. Representatives
State-level officials
Former state party chairs
Local-level officials
Individuals
Todd Rokita
State-level officials
Former state party chairs
Local-level officials
Individuals
Newspapers

Polling

Poll sourceDate(s)
administered
Sample
size
Margin
of error
Luke
Messer
Todd
Rokita
Mike
Braun
OtherUndecided
Strategic National (R)May 5–6, 2018300± 5.7%29%28%44%
Gravis Marketing Archived November 28, 2020, at the Wayback MachineApril 6–11, 2018280± 5.9%13%16%26%45%
GS Strategy Group (R-Rokita)January 6–9, 2018500± 4.4%9%24%9%58%
GS Strategy Group (R-Rokita)July 16–18, 2017500± 4.4%20%28%51%
14%21%11%55%
OnMedia (R-Messer) Archived August 13, 2017, at the Wayback MachineJuly 10–12, 2017400± 4.8%23%23%2%7%[a]45%

Results

Results by county:
  Braun
  •   80–90%
  •   60–70%
  •   50–60%
  •   40–50%
  •   <40%
  Rokita
  •   <40%
  •   40–50%
  Messer
  •   <40%
  •   40–50%
  •   50–60%
  •   60–70%
Republican primary results[14]
PartyCandidateVotes%
RepublicanMike Braun 208,602 41.17%
RepublicanTodd Rokita151,96729.99%
RepublicanLuke Messer146,13128.84%
Total votes506,700 100.00%

Independent

Candidates

Declared

  • James Johnson Jr.[60]

General election

Candidates

  • Mike Braun, businessman and former state representative (R)
  • Lucy Brenton (L)
  • Joe Donnelly, incumbent (D)
  • James Johnson Jr. (I)

Debates

Predictions

SourceRankingAs of
The Cook Political Report[61]TossupOctober 26, 2018
Inside Elections[62]TossupNovember 1, 2018
Sabato's Crystal Ball[63]Lean R (flip)November 5, 2018
CNN[64]TossupNovember 5, 2018
RealClearPolitics[65]TossupNovember 5, 2018
Daily Kos[66]TossupNovember 5, 2018
Fox News[67]TossupNovember 5, 2018

Fundraising

Campaign finance reports as of October 17, 2018
Candidate (party)Total receiptsTotal disbursementsCash on hand
Joe Donnelly (D)$16,100,528$13,872,981$2,321,981
Mike Braun (R)$16,964,706$15,576,842$1,387,861
Source: Federal Election Commission[68]

Endorsements

Mike Braun (R)
U.S. Executive Branch Officials
U.S. Senators
U.S. Representatives
Governors
State Senators
State Representatives
Cabinet-level officials
Individuals
Organizations
Joe Donnelly (D)
U.S. Executive Branch officials
U.S. Senators
Local officials
Individuals
Organizations
Newspapers
Declined to endorse
Organizations
  • Indiana Chamber of Commerce[130]
Newspapers

Polling

Graphical summary
Poll sourceDate(s)
administered
Sample
size
Margin
of error
Joe
Donnelly (D)
Mike
Braun (R)
Lucy
Brenton (L)
OtherUndecided
HarrisXNovember 3–5, 2018600± 4.0%42%43%
HarrisXNovember 2–4, 2018600± 4.0%43%41%
HarrisXNovember 1–3, 2018600± 4.0%43%42%
HarrisXOctober 31 – November 2, 2018600± 4.0%44%42%
HarrisXOctober 30 – November 1, 2018600± 4.0%43%43%
HarrisXOctober 29–31, 2018600± 4.0%40%43%
Fox NewsOctober 27–30, 2018722 LV± 3.5%45%38%5%2%9%
852 RV± 3.0%42%38%6%2%11%
HarrisX Archived November 6, 2018, at the Wayback MachineOctober 24–30, 20181,400± 2.6%42%42%
NBC News/MaristOctober 24–28, 2018496 LV± 5.5%45%42%7%<1%5%
48%46%2%5%
800 RV± 4.2%43%40%9%<1%7%
47%45%2%7%
Cygnal (R)October 26–27, 2018505± 4.4%46%49%3%2%
YouGovOctober 23–26, 2018975± 3.7%43%46%3%0%8%
Mason Strategies (R)October 15–20, 2018600± 3.9%43%47%3%7%
American Viewpoint (R-Braun)October 14–17, 201880040%44%7%5%
SurveyUSAOctober 12–16, 2018816± 4.6%41%40%8%11%
Gravis MarketingOctober 12–16, 2018377± 5.1%44%40%7%10%
Vox Populi PollingOctober 13–15, 2018783± 3.5%55%45%
American Viewpoint (R-Braun)October 7–10, 201880040%44%7%7%
American Viewpoint (R-Braun)September 30 – October 3, 201880039%43%7%5%
Fox NewsSeptember 29 – October 2, 2018695 LV± 3.5%43%41%6%2%9%
806 RV± 3.5%41%40%6%1%10%
IpsosSeptember 12–20, 20181,181± 3.0%46%43%3%8%
Fox NewsSeptember 8–11, 2018677 LV± 3.5%43%45%3%1%8%
804 RV± 3.5%42%41%4%1%10%
NBC News/MaristAugust 26–29, 2018576 LV± 5.0%44%41%8%1%6%
49%43%2%7%
816 RV± 4.2%43%40%8%1%8%
48%42%2%9%
Trafalgar Group (R)July 31 – August 7, 20181,420± 2.6%51%39%11%
SurveyMonkey/AxiosJune 11 – July 2, 2018952± 5.0%47%49%4%
Gravis MarketingMay 10–15, 2018400± 4.9%46%47%7%
Hypothetical polling
with Todd Rokita
Poll sourceDate(s)
administered
Sample
size
Margin
of error
Joe
Donnelly (D)
Todd
Rokita (R)
Undecided
Gravis Marketing Archived November 28, 2020, at the Wayback MachineApril 6–11, 2018411± 4.8%50%32%18%
with Luke Messer
Poll sourceDate(s)
administered
Sample
size
Margin
of error
Joe
Donnelly (D)
Luke
Messer (R)
Undecided
Gravis Marketing Archived November 28, 2020, at the Wayback MachineApril 6–11, 2018411± 4.8%46%36%18%
with generic Republican
Poll sourceDate(s)
administered
Sample
size
Margin
of error
Joe
Donnelly (D)
Generic
Republican
Undecided
SurveyMonkey/AxiosFebruary 12 – March 5, 20181,809± 3.8%45%51%4%

Results

On November 6, 2018, Braun won the general election.[133] He swept southern Indiana, the exurbs of Indianapolis, and most other rural areas in the state. Donnelly ran well behind his 2012 vote totals, winning only in Indianapolis, the university centers (Bloomington, Terre Haute, West Lafayette, South Bend), and the suburbs of Chicago in Northwest Indiana.[134]

United States Senate election in Indiana, 2018[135]
PartyCandidateVotes%±%
RepublicanMike Braun 1,158,000 50.73% +6.5%
DemocraticJoe Donnelly (incumbent)1,023,55344.84%-5.2%
LibertarianLucy Brenton100,9424.42%-1.3%
Write-in70<0.00%N/A
Total votes2,282,565 100.00% N/A
Republican gain from Democratic

Counties that flipped from Democratic to Republican

By congressional district

Braun won 6 of 9 congressional districts, with Donnelly winning the other 3, including one held by a Republican.

DistrictBraunDonnellyElected
Representative
1st37.9%60.6%Pete Visclosky
2nd51.0%45.5%Jackie Walorski
3rd59.6%36.7%Jim Banks
4th57.9%37.4%Jim Baird
5th47.9%48.4%Susan Brooks
6th60.8%34.3%Greg Pence
7th31.8%64.5%André Carson
8th57.3%38.4%Larry Bucshon
9th54.3%41.5%Trey Hollingsworth

Voter Demographics

Edison Research exit poll
Demographic subgroupDonnellyBraunNo
Answer
% of
Voters
Gender
Men4057349
Women4946551
Age
18–29 years old4845713
30–44 years old4943820
45–64 years old4454339
65 and older4157128
Race
White4056486
Black881118
Latino712263
AsianN/AN/AN/A1
OtherN/AN/AN/A2
Race by gender
White men3562342
White women4451544
Black men821524
Black women95504
Latino menN/AN/AN/A1
Latina womenN/AN/AN/A2
OthersN/AN/AN/A2
Education
High school or less4056423
Some college education4054626
Associate degree4155413
Bachelor's degree4651322
Advanced degree6136216
Education and race
White college graduates4948334
White no college degree3362553
Non-white college graduates801924
Non-white no college degree7620410
Whites by education and gender
White women with college degrees5739417
White women without college degrees3659627
White men with college degrees4157217
White men without college degrees3165426
Non-whites7720314
Income
Under $30,0004944815
$30,000–49,9994649423
$50,000–99,9994455235
$100,000–199,9994452422
Over $200,000N/AN/AN/A5
Party ID
Democrats926229
Republicans890239
Independents4744931
Party by gender
Democratic men926212
Democratic women935218
Republican men891119
Republican women890220
Independent men4252718
Independent women55331213
Ideology
Liberals868620
Moderates5937540
Conservatives1088240
Marital status
Married4354361
Unmarried5146339
Gender by marital status
Married men3860231
Married women4849330
Unmarried men4253519
Unmarried women6139120
First-time midterm election voter
Yes4153615
No4651385
Most important issue facing the country
Health care7026441
Immigration1085527
Economy3166321
Gun policy663138
Area type
Urban6333431
Suburban4453344
Rural3758525
Source: CNN[136]

Notes

References

External links

Official campaign websites