Ohio's_12th_congressional_district_special_election,_2018
A special election for Ohio's 12th congressional district was held August 7, 2018, following the resignation of Republican U.S. Representative Pat Tiberi. The Republican Party nominated State Senator Troy Balderson for the seat while the Democratic Party nominated Franklin County Recorder Danny O'Connor. Balderson led O'Connor in preliminary results; however, the race was not officially called on election night.[1] Counting of outstanding ballots began on August 18 and was completed on August 24.[2] The outstanding ballots did not change the margin enough to trigger an automatic recount, so Balderson was declared the winner on August 24.[3]
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Ohio's 12th congressional district | |||||||||||||||||
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County results | |||||||||||||||||
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On October 19, 2017, nine-term incumbent Republican representative Pat Tiberi announced that he would leave office before January 31, 2018, in order to lead the Ohio Business Roundtable.[4] On January 3, 2018, he announced that he would officially resign January 15.[5] On January 5, Ohio Governor John Kasich set the primaries for the special election for May 8, and the general election for August 7.[6] The winner of this special election would serve for five months until January 2019, unless also elected in the regularly scheduled November general election.
Ohio's 12th congressional district at the time was located in the central portion of the state and included all of Delaware, Licking, and Morrow counties as well as portions of Franklin, Marion, Muskingum, and Richland counties. The district had been in Republican hands for all but one term since 1939, and without interruption since 1983.
Candidates
Nominee
- Troy Balderson, state senator[7][8]
Eliminated in primary
- Kevin Bacon, state senator[7][9]
- Lawrence Cohen, accountant[10]
- Jon Halverstadt, real estate investor[7]
- Tim Kane, economist, former air force intelligence officer[11]
- Melanie Leneghan, Liberty Township Trustee[12]
- Pat Manley, architect[10]
- Carol O'Brien, Delaware County Prosecutor[7]
Declined
- Andrew Brenner, state representative (running for state senate)[9]
- Anne Gonzales, state representative (running for state senate)[8]
- John Kasich, Governor and former U.S. Representative[9]
- Clarence Mingo, Franklin County Auditor (endorsed Kevin Bacon)[9][13]
- J. D. Vance, author and venture capitalist[9]
Endorsements
- Local and statewide politicians
- Clarence Mingo, Franklin County Auditor[13]
- Organizations
- Franklin County Republican Party[14]
- Ohio Right to Life PAC[15]
- Carly Fiorina, former presidential candidate
- Federal politicians
- George P. Shultz, former United States Secretary of State (1982–1989)[16]
- Federal politicians
- Jim Jordan, U.S. Representative (R-OH)[17]
- Local and statewide politicians
- Mike Gemperline, Liberty Township Trustee[18]
- Nancy DeNutte, Liberty Township Fiscal Officer[18]
- Ryan Rivers, Orange Township Trustee[18]
- Joe Garrett, Concord Township Trustee[18]
- Kris Jordan, state senator[18]
- Lisa Knapp, Orange Township Trustee[18]
- Linda Reidelbach, former state representative
- Organizations
- Local and statewide politicians
- Dave Yost, Ohio Auditor[23]
- Russ Martin, Delaware County Sheriff[24]
- Chris Bauserman, Delaware County Engineer[24]
- Natalie Fravel, Delaware County Clerk of Courts[24]
- George Kaitsa, Delaware County Auditor[24]
- Jon Peterson, Delaware County Treasurer[24]
- Mark Hickman, Delaware County Coroner[24]
- Barb Lewis, Delaware County Commissioner[24]
- Jeff Benton, Delaware County Commissioner[24]
Polling
Poll source | Date(s) administered |
Sample size |
Margin of error |
John Adams |
Kevin Bacon |
Troy Balderson |
Gary Chiero |
Lawrence Cohen |
Jonathan Halverstadt |
Tim Kane |
Melanie Leneghan |
Pat Manley |
Carol O'Brien |
Mick Shoemaker |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Public Opinion Strategies (R-Balderson) | April 15–16, 2018 | 300 | ± 5.7% | 0% | 10% | 17% | 0% | 0% | 2% | 10% | 11% | 1% | 7% | 1% |
Results
Party | Candidate | Votes | % | |
---|---|---|---|---|
Republican | Troy Balderson | 20,101 | 29.22 | |
Republican | Melanie Leneghan | 19,437 | 28.25 | |
Republican | Tim Kane | 11,743 | 17.07 | |
Republican | Kevin Bacon | 9,819 | 14.27 | |
Republican | Carol O'Brien | 4,406 | 6.40 | |
Republican | Jon Halverstadt | 998 | 1.45 | |
Republican | Lawrence Cohen | 807 | 1.17 | |
Republican | Mick Shoemaker | 750 | 1.09 | |
Republican | Pat Manley | 741 | 1.08 | |
Total votes | 68,802 | 100 |
Candidates
Nominee
- Danny O'Connor, Franklin County Recorder[26]
Eliminated in primary
- Ed Albertson, businessman and nominee for OH-12 in 2016[9]
- Jackie Patton, nurse[10]
- John Peters, special education teacher[9]
- John Russell, farmer and nominee for State Representative in 2016[27]
- Zach Scott, former Franklin County Sheriff[7]
- Doug Wilson, health care professional[9]
Withdrew
- Crystal Lett, healthcare advocate[28]
Declined
Endorsements
- Federal politicians
- Mary Jo Kilroy, former U.S. Representative[30]
- Local and State Politicians
- Connie Pillich, former state representative and Ohio Gubernatorial Candidate[31]
- Marian Harris, former Ohio State Representative[32]
- Valerie Cumming, Westerville City Councilwoman[31]
- Organizations
- Delaware County Young Dems[33]
- Local and statewide politicians
- Dallas Baldwin, Franklin County Sheriff[34]
Results
Party | Candidate | Votes | % | |
---|---|---|---|---|
Democratic | Danny O'Connor | 18,422 | 40.94 | |
Democratic | Zach Scott | 7,554 | 16.76 | |
Democratic | John Russell | 7,515 | 16.70 | |
Democratic | Jackie Patton | 6,111 | 13.58 | |
Democratic | Ed Albertson | 3,638 | 8.08 | |
Democratic | Doug Wilson | 1,771 | 3.94 | |
Total votes | 45,011 | 100.0 |
Candidates
Withdrawn
- Jonathan Veley, attorney
Candidates
- Troy Balderson (Republican), state senator
- Joe Manchik (Green), small business owner
- Danny O'Connor (Democratic), Franklin County Recorder
Predictions
Source | Ranking | As of |
---|---|---|
The Cook Political Report[35] | Tossup | May 2, 2018 |
Inside Elections/Rothenberg Political Report[36] | Tilt R | May 4, 2018 |
Sabato's Crystal Ball[37] | Tossup | July 24, 2018 |
Endorsements
- Federal officials
- Donald Trump, President of the United States[38][39]
- Mike Pence, Vice President of the United States[40]
- Rob Portman, U.S. Senator (R-OH)[41]
- Jim Renacci, U.S. Representative (R-OH) and Republican Nominee for US Senate in 2018[42]
- Bob Gibbs, U.S. Rep[42]
- Jim Jordan, U.S. Rep[42]
- Steve Stivers, U.S. Rep[42]
- Brad Wenstrup, U.S. Representative (R-OH)[43]
- Pat Tiberi, former U.S. Representative (R-OH)[44]
- Local and statewide politicians
- John Kasich, Governor of Ohio[45]
- Mary Taylor, Lieutenant Governor of Ohio[46]
- Mike DeWine, Ohio Attorney General[42]
- Jon Husted, Ohio Secretary of State[47]
- Dave Yost, State Auditor[48]
- Frank LaRose, state senator[49]
- Keith Faber, state representative[50]
- Jay Hottinger, state senator[51]
- Rick Carfagna, state representative[52]
- Robert Sprague, state representative[53]
- Scott Ryan, state representative[54]
- Dorothy Pelanda, state representative[55]
- Larry Obhof, President of the Ohio Senate[56]
- David Burke, state senator[57]
- Individuals
- Tim Kane, economist, former Air Force intelligence office and candidate[58]
- Anthony Gonzalez, candidate for Congress (OH-16)[59]
- Hugh Hewitt, radio host[60]
- Ronna McDaniel, Chair of the Republican National Committee[61]
- Bob Paduchik, Co-chair of the Republican National Committee[62]
- Jane Timken, Chair of the Ohio Republican Party[63]
- Donald Trump Jr., businessman and son of U.S. President Donald Trump[64]
- Eric Trump, philanthropist and son of U.S. President Donald Trump[65]
- Organizations
- National Federation of Independent Business[66]
- U.S. Chamber of Commerce[67]
- Tea Party Express[68]
- NRA Political Victory Fund[69][70]
- Ohio Restaurant Association[71]
- Ohio State Medical Association[72]
- Ohio Right to Life[73]
- Federal officials
- Joe Biden, former Vice President of the United States[74]
- Sherrod Brown, U.S. Senator (D-OH)[75]
- Jeff Merkley, U.S. Senator (D-OR)[76]
- Doug Jones, U.S. Senator (D-AL)[77]
- Richard Cordray, former Director of the Consumer Financial Protection Bureau[78]
- Joyce Beatty, U.S. Representative (D-OH)[79]
- Conor Lamb, U.S. Representative (D-PA)[80][81]
- Tim Ryan, U.S. Representative (D-OH)[82]
- Adam Schiff, U.S. Representative (D-CA)[83]
- Zack Space, former U.S. Representative (D-OH)[84]
- Betty Sutton, former U.S. Representative (D-OH)[85]
- Steve Dettelbach, former U.S. Attorney[86]
- Local and statewide politicians
- Kristin Boggs, state representative[30]
- Kevin Boyce, Franklin County Commissioner[30]
- Elizabeth Brown, Columbus City Councilmember[30]
- Marilyn Brown, Franklin County Commissioner[30]
- Don Bryant, Mansfield City Council At‐Large Member[30]
- Kathleen Clyde, state representative[87]
- Hearcel Craig, state representative[30]
- Shannon Hardin, President of the Columbus City Council[30]
- Megan Kilgore, Columbus City Auditor[30]
- Zach Klein, Columbus City Attorney[30]
- David Leland, state representative[30]
- Adam Miller, state representative[30]
- John O'Grady, Franklin County Commissioner[30]
- Martin O'Malley, former Governor of Maryland[88]
- Maryellen O'Shaughnessy, Franklin County Clerk of Courts[30]
- Garnetta Pender, Mansfield City Councilmember[30]
- Phillip Scott, Mansfield City Council President[30]
- Michael Stinziano, Columbus City Councilmember and former state representative[30]
- Ted Strickland, former Governor of Ohio and former U.S. Representative (D-OH)[89]
- Andrew Ginther, Mayor of Columbus, OH[90]
- Marty Walsh, Mayor of Boston, MA[91]
- Individuals
- Chelsea Handler, actress[92]
- David Pepper, Chair of the Ohio Democratic Party[93]
- Piper Perabo, actress[94]
- Christopher Meloni, actor[95]
- Randi Mayem Singer, screenwriter and producer[96]
- Misha Collins, actor[97]
- Sarah Silverman, actress and comedian[98]
- Neera Tanden, policy advisor[99]
- Danny Zuker, television producer[100]
- Adam Parkhomenko, political strategist[101]
- Joshua Malina, actor[102]
- Andrew Zimmern, television personality[103]
- Valerie Bertinelli, actress and television personality[104]
- John Legend, singer-songwriter[105]
- George Takei, actor and activist[106]
- Debra Messing, actress[107]
- Fred Guttenberg, activist[108]
- Tim Guinee, actor[109]
- Alyssa Milano, actress and activist[110]
- Tom Perez, Chair of the Democratic National Committee[111]
- Billy Eichner, television personality[112]
- Labor unions
- International Association of Sheet Metal, Air, Rail and Transportation Workers[113]
- International Union of Painters and Allied Trades District 6[113]
- Service Employees International Union District 1199[114]
- Organizations
- End Citizens United[115]
- Democratic Progressives of Ohio[116]
- Franklin County Democratic Party[117]
- Giffords PAC[118]
- Human Rights Campaign[119]
- League of Conservation Voters Action Fund[120]
- NARAL Pro-Choice America[121]
- Ohio Democratic Party[122]
- Ohio State University College Democrats[123]
- Planned Parenthood Advocates of Ohio[124]
- Newspapers and news websites
Polling
Poll source | Date(s) administered |
Sample size |
Margin of error |
Troy Balderson (R) |
Danny O'Connor (D) |
Joe Manchik (G) |
Other | Undecided |
---|---|---|---|---|---|---|---|---|
Emerson College Archived August 17, 2018, at the Wayback Machine | August 2–4, 2018 | 431 | ± 5.0% | 46% | 47% | – | – | 7% |
Monmouth University | July 26–31, 2018 | 512 | ± 4.3% | 44% | 43% | 2% | 0% | 11% |
Public Policy Polling (D-End Citizens United) | July 27–29, 2018 | 617 | ± 4.0% | 48% | 44% | – | – | – |
GBA Strategies (D-O'Connor) | July 23–25, 2018 | 500 | ± 4.4% | 48% | 45% | 2% | – | – |
GBA Strategies (D-O'Connor) | July 10–13, 2018 | 600 | ± 4.0% | 48% | 43% | 5% | – | – |
JMC Analytics | June 13–16, 2018 | 500 | ± 4.4% | 46% | 35% | 1% | – | 18% |
GBA Strategies (D-O'Connor) | June 9–12, 2018 | 500 | ± 4.4% | 48% | 41% | 4% | – | – |
Monmouth University | June 7–10, 2018 | 501 | ± 4.4% | 43% | 33% | 1% | 2% | 21% |
Public Policy Polling (D-End Citizens United) | May 10–11, 2018 | 625 | ± 3.9% | 45% | 43% | – | – | 11% |
Poll source | Date(s) administered |
Sample size |
Margin of error |
Generic Republican |
Generic Democrat |
Undecided |
---|---|---|---|---|---|---|
GBA Strategies (D-O'Connor) | July 23–25, 2018 | 500 | ± 4.4% | 50% | 46% | – |
Results
Party | Candidate | Votes | % | ±% | |
---|---|---|---|---|---|
Republican | Troy Balderson | 104,328 | 50.12% | -16.43% | |
Democratic | Danny O'Connor | 102,648 | 49.32% | +19.48% | |
Green | Joe Manchik | 1,165 | 0.56% | -3.01% | |
Total votes | 208,141 | 100.0% | N/A | ||
Republican hold | |||||
O'Connor dominated the district's portion of Franklin County, home to the largest share of the district's population. However, he could not overcome a 4,800-vote deficit in normally heavily Republican Delaware County, the largest whole county in the district. Still, this was the closest that a Democrat had come to winning the district since 1982.
County results
Troy Balderson Republican |
Danny O'Connor Democrat |
Joe Manchik Green |
Total | ||||
---|---|---|---|---|---|---|---|
County | Votes | % | Votes | % | Votes | % | Votes |
Delaware | 32,576 | 53.97% | 27,548 | 45.64% | 240 | 0.40% | 60,364 |
Franklin | 25,209 | 34.45% | 47,639 | 65.10% | 328 | 0.45% | 73,176 |
Licking | 24,340 | 60.72% | 15,443 | 38.52% | 304 | 0.76% | 40,087 |
Marion | 1,236 | 68.33% | 560 | 30.96% | 13 | 0.72% | 1,809 |
Morrow | 5,225 | 69.99% | 2,173 | 29.11% | 67 | 0.90% | 7,465 |
Muskingum | 7,928 | 66.43% | 3,902 | 32.69% | 105 | 0.88% | 11,935 |
Richland | 7,814 | 58.73% | 5,383 | 40.46% | 108 | 0.81% | 13,305 |
- "2018 Ohio Special Election Results". PoliticoElections. Constantly updated
- Dan DeRoos (August 8, 2018). "Explaining how absentee and provisional ballots could change the result of the 12th district special election in Ohio". Cleveland 19 News. Retrieved August 9, 2018.
- "Republican Troy Balderson officially wins Ohio special election". CBS News. August 24, 2018. Retrieved August 24, 2018.
- Jagoda, Naomi (October 19, 2017). "Ohio Republican Tiberi to leave Congress". The Hill. Washington, D.C. Retrieved October 26, 2017.
- Wehrman, Jessica (January 3, 2018). "Tiberi's last day in Congress will be Jan. 15". The Columbus Dispatch. Columbus, Ohio. Retrieved January 4, 2018.
- Ludlow, Randy (January 5, 2018). "Kasich sets primary for Tiberi seat for May 8; special election on Aug. 7". The Columbus Dispatch. Columbus, Ohio. Retrieved January 11, 2018.
- Gribble, Rachel (December 17, 2017). "Candidates lining up to run for Tiberi's seat in Congress, special election yet to be scheduled". nbc4i.com. Columbus, Ohio: WCMH-TV (NBC4). Retrieved January 13, 2018.
- Balmert, Jessie; Shesgreen, Deirdre (October 19, 2017). "Tiberi seat, soon to be vacant, attracts frenzy of GOP hopefuls". Newark Advocate. Newark, Ohio. Retrieved December 8, 2017.
- Pelzer, Jeremy (October 9, 2017). "Here's who's interested in running for Pat Tiberi's congressional seat". The Plain Dealer (cleveland.com). Cleveland, Ohio. Retrieved December 8, 2017.
- Wehrman, Jessica (January 24, 2018). "Clintonville architect becomes latest to run for Tiberi's old seat". The Columbus Dispatch. Columbus, Ohio. Retrieved January 31, 2018.
- "Tim Kane Files to Run for U.S. Congress in OH-12". Tim Kane for Ohio. February 1, 2018. Archived from the original on May 7, 2018. Retrieved May 6, 2018.
- Botkin, D. Anthony (January 22, 2018). "Leneghan joins crowded 12th District House race". Delaware Gazette. Delaware, Ohio. Retrieved January 22, 2018.
- "Bacon announces campaign team and Mingo Endorsement" (Press release). Bacon for Congress. January 11, 2018. Archived from the original on January 18, 2018. Retrieved January 17, 2018.
- "Conservative Kevin Bacon Endorsed by Franklin County Republican Party" (Press release). Kevin Bacon for Congress. February 27, 2018. Archived from the original on March 18, 2018.
- "Ohio Right to Life PAC Announces 2018 Primary Endorsements | Ohio Right to Life PAC". ohiovotesforlife.org. The Ohio Right to Life Political Action Committee. March 20, 2018. Archived from the original on April 5, 2018. Retrieved April 5, 2018.
- Wehrman, Jessica. "Reagan's secretary of state to raise cash for one of Tiberi's would-be replacements". The Columbus Dispatch. Columbus, Ohio. Retrieved March 5, 2018.
- Jordan, Jim (March 21, 2018). "Congressman Jim Jordan's Endorsement of Melanie Leneghan". Melanie Leneghan for Congress – via YouTube.
- "Endorsements - Melanie Leneghan". Melanie Leneghan. Archived from the original on April 5, 2018. Retrieved April 5, 2018.
- Martin, Jeremiah (February 6, 2018). "First Freedom Ohio Announces Executive Director, Support of Conservatives in Congressional Districts 12 and 16 | First Freedom Ohio". www.firstfreedomohio.com. Archived from the original on April 5, 2018. Retrieved April 5, 2018.
- Torry, Jack (April 4, 2018). "House Freedom group endorses Leneghan for Tiberi seat". The Columbus Dispatch.
- Barefoot, Jeff; Smith, Molly; Sitter, Ed (March 30, 2018). "Right to Life Action Coalition of Ohio – Primary Election Endorsements" (PDF).
- Zawistowski, Tom (February 26, 2018). "WTPC Announces First Congressional Endorsements". www.wethepeopleconvention.org.
- Wehrman, Jessica (January 9, 2018). "Yost backing Carol O'Brien for Tiberi congressional seat". The Columbus Dispatch. Retrieved January 17, 2018.
- Carter, Ashley (December 14, 2017). "Delaware County GOP leaders endorse O'Brien in 12th District race". The Columbus Dispatch. Retrieved January 17, 2018.
- "Ohio Primary Election Results: 12th House District". The New York Times. May 9, 2018.
- Pelzer, Jeremy (January 30, 2018). "Franklin County Recorder Danny O'Connor jumps in race for Pat Tiberi's old congressional seat". Cleveland.com. Retrieved January 31, 2018.
- Jeremy, Pelzer (December 3, 2018). "Another Democrat running for Pat Tiberi's congressional seat". Cleveland.com. Retrieved January 13, 2018.
- "Crystal Lett on Congress". www.facebook.com. Retrieved March 18, 2018.
- Wehrman, Jessica (January 17, 2018). "Goyal rules out run to replace Tiberi in special election". The Columbus Dispatch. Retrieved January 17, 2018.
- O'Connor, Danny. "Indivisible OH12: Ohio 12th Congressional District Candidate Questionnaire" (PDF).
- "Local political news briefs". Archived from the original on April 20, 2018. Retrieved April 19, 2018.
- Zach Scott [@ZachScottOhio] (January 4, 2018). "I am proud and honored to receive the endorsement of Franklin County Sheriff Dallas Baldwin for my Congressional race! #BringCommonSensetoCongress" (Tweet) – via Twitter.
- Dave Wasserman. "OH-12: Both Parties' Primaries Going Down to the Wire". Retrieved January 2, 2022.
- "House Ratings | Inside Elections". www.insideelections.com. Retrieved June 29, 2018.
- "Larry J. Sabato's Crystal Ball » The House Tilts Toward the Democrats". www.centerforpolitics.org. Retrieved July 24, 2018.
- Wehrman, Jessica (August 3, 2018). "Portman campaigning for Balderson in campaign's final days". The Columbus Dispatch.
- Daugherty, Owen (July 28, 2018). "Ohio's Republicans campaign for Balderson in buildup to special election". The Columbus Dispatch.
- Brad Wenstrup. "The polls are open! If you live in #OH12, be sure to vote for @Troy_Balderson today!". Twitter.
- Torry, Jack (April 19, 2018). "Pat Tiberi will endorse Troy Balderson for congressional seat". The Columbus Dispatch.
- Troy Balderson. "Appreciate the support @KeithFaber!". Twitter.
- Jay Hottinger. "Good luck tomorrow Troy". Twitter.
- Robert Sprague. "Knocking doors for @Troy_Balderson. Get out and vote on August 7th! #OH12". Twitter.
- Ronna McDaniel. "Vote for @Troy_Balderson in #OH12 and the rest of our great Republican candidates running today". Twitter.
- Bob Paduchik. ".@Troy_Balderson is the right guy for #OH12. He will work for Ohio Families". Twitter.
- "Small Business Endorses Troy Balderson for Congress". NFIB. June 27, 2018. Archived from the original on July 26, 2018.
- "Tea Party Express Endorses Troy Balderson for U.S. Congress in Ohio". Tea Party Express. July 31, 2018. Archived from the original on August 5, 2018.
- "Please Vote Tomorrow – Vote Troy Balderson for U.S. House of Representatives!". nrapvf.org. NRA-PVF. Archived from the original on August 16, 2023. Retrieved August 16, 2023.
The NRA Political Victory Fund (NRA-PVF) has endorsed Troy Balderson for U.S. House of Representatives in the August 7th, 2018, Special Election in the 12th Congressional District of Ohio.
- "ORA Endorses Troy Balderson". Ohio Restaurant Association. July 24, 2018.
- Wehrman, Jessica (February 26, 2018). "Beatty backs O'Connor in race for Ohio's 12th congressional seat". The Columbus Dispatch.
- "OH-12: Rep. Conor Lamb (D. PA) Helps Danny O'Connor (D) Pull Off Another Special Election Victory". Daily Kos. July 9, 2018.
- Torry, Jack (March 22, 2018). "Tim Ryan endorses O'Connor for Tiberi seat". The Columbus Dispatch.
- Martin O'Malley. "Who's ready to send @dannyoconnor1 to Congress from #OH12?!". Twitter.
- Torry, Jack (February 28, 2018). "Ted Strickland endorses Danny O'Connor for former Tiberi seat". The Columbus Dispatch.
- Mayor Andrew Ginther. "The #bluewave in Ohio begins with Danny O'Connor for Congress! Be sure to vote early and volunteer to turn #OH12 blue". Twitter.
- Randi Mayem Singer. "Please support and FOLLOW @dannyoconnor1 to flip #Oh12". Twitter.
- @JoshMalina (August 2, 2018). ""Support @dannyoconnor1: ..."" (Tweet) – via Twitter.
- Valerie Bertinelli. "Dear, sweet, beautiful Ohio you know I love you do your thing and vote for @dannyoconnor1! #OH12". Twitter.
- Alyssa Milano. "OH-12 you get to vote for @dannyoconnor1 today! #GOTV". Twitter.
- Tom Perez. "You can chip in to flip another seat! Keep making phone calls for #OH12". Twitter.
- O'Connor, Danny. "Proud to be endorsed by the Sheet Metal Workers International Union and Painters and Allied Trades District 6! It is time for Washington to stop leaving workers behind, and when I'm in congress, I will push them up to the front of the line again! Chip in today to help me spread the word!". www.facebook.com.
- Williams, Becky; McCormick, Kathy (April 24, 2018). "Voter Guide 2018 – Endorsed Candidates". www.seiu1199.org. Archived from the original on June 25, 2018. Retrieved July 4, 2018.
- Muller, Tiffany (May 15, 2018). "End Citizens United Endorses Danny O'Connor in OH-12 - End Citizens United". End Citizens United.
- "Democratic Progressives of Ohio | Ohio". Democratic Progressives of Ohio | Ohio. February 28, 2018. Archived from the original on March 13, 2018. Retrieved March 13, 2018.
- "FCDP Sample Ballot". Franklin County Democratic Party.
- Giffords, Gabrielle; Kelly, Mark (July 24, 2018). "Giffords Endorses Danny O'Connor for Congress in Ohio - Giffords". Giffords. Archived from the original on July 30, 2018. Retrieved July 30, 2018.
- Metzger, Ianthe (July 10, 2018). "HRC Endorses Danny O'Connor for U.S. Congress | Human Rights Campaign". Human Rights Campaign. Archived from the original on July 17, 2018. Retrieved July 16, 2018.
- Sittenfeld, Tiernan; Taylor-Miesle, Heather (July 25, 2018). "LCV Action Fund Endorses Danny O'Connor for Congress - League of Conservation Voters". League of Conservation Voters.
- Hogue, Ilyse; Copeland, Kellie (June 15, 2018). "NARAL Pro-Choice America Endorses Danny O'Connor for Congress - NARAL Pro-Choice America". NARAL Pro-Choice America.
- "Ohio Democratic Party Endorsed Issues & Candidates". Ohio Democratic Party. Archived from the original on July 17, 2018. Retrieved July 17, 2018.
- Ohio State University College Democrats [@OSUDems] (March 30, 2018). "Official statement by College Democrats at Ohio State on @dannyoconnor1 and Ohio's 12th district" (Tweet) – via Twitter.
- Harvey, Iris (June 25, 2018). "2018 Candidate Endorsements". www.plannedparenthoodaction.org. Planned Parenthood Advocates of Ohio. Archived from the original on July 4, 2018.
- "Endorsement: For 12th District: Danny O'Connor favored for open seat". The Columbus Dispatch. The Columbus Dispatch Editorial Board. July 8, 2018.
- "August 7, 2018 Special Congressional General Election Official Canvass". Ohio Secretary of State. Archived from the original on July 28, 2019. Retrieved July 27, 2019.