{{Short description|American politician (born 1975)}} {{distinguish|text=Jeff Duncan, United States Representative from South Carolina}} {{Use American English|date=November 2025}} {{Use mdy dates|date=August 2025}} {{Infobox officeholder | name = Geoff Duncan | image = David Perdue and Geoff Duncan Headshot.jpg | caption = Duncan in 2019 | alt = Portrait of Geoff Duncan in suit and blue necktie. | office = 12th Lieutenant Governor of Georgia | governor = Brian Kemp | term_start = January 14, 2019 | term_end = January 9, 2023 | predecessor = Casey Cagle | successor = Burt Jones | state_house1 = Georgia | district1 = 26th | term_start1 = January 14, 2013 | term_end1 = August 28, 2017 | predecessor1 = Carl Rogers | successor1 = Marc Morris | birth_date = {{birth date and age|1975|4|1}} | birth_place = Atlanta, Georgia, U.S. | death_date = | death_place = | party = Democratic (2025–present)<br>Republican (until 2025) | spouse = {{marriage|Brooke Mize|1997}} | children = 3 | education = Georgia Institute of Technology (BS) | website = {{URL|https://www.duncanforgeorgia.com/|Campaign website}} }}
'''Geoffrey L. Duncan''' (born April 1, 1975) is an American politician, businessman, and public speaker. Elected as a Republican, he served as the 12th lieutenant governor of Georgia from 2019 to 2023, and was a member of the Georgia House of Representatives from 2013 to 2017. He joined the Democratic Party in 2025.
After playing college baseball for the Georgia Tech Yellow Jackets, Duncan played professional baseball for six years, until a shoulder injury ended his baseball career. He went into business and was elected to the Georgia House in 2012. Duncan was elected lieutenant governor in 2018, but he did not seek re-election in 2022, with fellow Republican Burt Jones elected to replace him.<ref>{{Cite news |last=Prabhu |first=Maya T. |title=Republican Burt Jones wins Georgia lieutenant governor race |language=English |work=The Atlanta Journal-Constitution |url=https://www.ajc.com/politics/republican-burt-jones-leads-in-georgia-lieutenant-governor-race/AGI65UIRKBCCDK7S2COAZZ646U/ |access-date=December 20, 2022 |issn=1539-7459}}</ref>
In the wake of the 2020 presidential election, Duncan was among the few Republican Party officials who openly and outspokenly criticized Donald Trump for falsely claiming the election was stolen. After leaving office, Duncan became a political commentator for CNN. In January 2025, the Georgia Republican Party's executive committee passed a resolution to expel Duncan from the state party and ban him from running as a Republican, a largely ceremonial statement as Georgia does not have partisan registration<ref>{{Cite web |last=Cook|first=Rhodes|title=Registering By Party: Where the Democrats and Republicans Are Ahead – Sabato's Crystal Ball|url=https://centerforpolitics.org/crystalball/articles/registering-by-party-where-the-democrats-and-republicans-are-ahead/|access-date=January 21, 2022|date=July 12, 2018|language=en-US}}</ref> nor do political parties have the power to unilaterally strip partisan affiliation from somebody. He joined the Democratic Party later that year and announced his candidacy for the 2026 Georgia gubernatorial election.<ref name=":4">{{cite news|work=Politico|access-date= September 16, 2025 |title=Former Lt. Gov. Geoff Duncan runs for Georgia governor — as a Democrat|url=https://www.politico.com/news/2025/09/16/former-lt-gov-geoff-duncan-runs-for-georgia-governor-as-a-democrat-00564859|last1=Schneider|first1=Elena}}</ref> He placed fourth in the Democratic primary.
== Early career ==
=== Baseball === Duncan attended Chattahoochee High School in Johns Creek, Georgia, and the Georgia Institute of Technology, where he played college baseball for the Yellow Jackets as a pitcher. He played in the 1994 College World Series with Georgia Tech, losing in the final round.<ref>{{Cite web |url=https://www.gtalumni.org/s/1481/alumni/17/magazine-pages.aspx?sid=1481&gid=21&pgid=17022&cid=37828&ecid=37828&crid=0&calpgid=16996&calcid=37827 |title=From Baseball's Star to the State's Second in Command: Geoff Duncan, Cls 97, Lieutenant Governor of Georgia |date=Summer 2019 |volume=95 |issue=2 |first=Laura |last=Means |website=www.gtalumni.org}}</ref> In 1995, he played collegiate summer baseball with the Yarmouth–Dennis Red Sox of the Cape Cod Baseball League.<ref>{{cite news | last =Maclone | first =Justin | title = Cards Holding Steady in Second | pages = 12 | newspaper = The Cape Codder | location = Orleans, MA | date = August 1, 1995 | url = https://snow-library.com/viewer/3058?medianame=1995_thecapecodder_vol50_issue61_orleans_000012 }}</ref><ref>{{cite web|url=https://cdthoms.shinyapps.io/CCBL/ |title=Player Stats |publisher=Cape Cod Baseball League |date= |accessdate=July 13, 2023}}</ref>
The Florida Marlins selected Duncan in the 69th round, with the 1,647th overall selection, of the 1996 Major League Baseball draft.<ref>{{cite web | url=https://www.baseball-reference.com/register/player.fcgi?id=duncan001geo | title=Geoff Duncan Minor Leagues Statistics }}</ref> Duncan played in Minor League Baseball for the Marlins organization from 1996 through 2000. He reached as high as Triple-A, where he was being used as a relief pitcher, when a shoulder injury ended his career.<ref>{{cite web|url=https://patch.com/georgia/alpharetta/former-pro-baseball-player-businessman-geoff-duncan-qualifies |title=Former Pro Baseball Player and Businessman Geoff Duncan Qualifies | Alpharetta, GA Patch |publisher=Patch.com |date=March 8, 2018 |access-date=December 7, 2020}}</ref> Duncan then retired from baseball and went into business.<ref>{{cite web |url=http://times-herald.com/news/2018/04/former-pro-pitcher-taking-aim-at-lt-governors-seat |title=Former pro pitcher taking aim at Lt. Governor's seat |first=Melanie |last=Ruberti |website=Newnan Times-Herald |date=April 15, 2018 |access-date=January 14, 2019}}</ref>
=== Business === Duncan was president of Striking Designs Inc. from 2006 to 2015. In 2015, he became chief executive officer for Wellview Health, a Nashville-based health care navigation company.<ref>{{cite news |author=<!--Staff writer(s); no by-line.--> |title=Wellview Health adds CEO, executive VP |url=https://www.nashvillepost.com/business/people/article/20630188/wellview-health-adds-ceo-executive-vp |work=Nashville Post |date=April 28, 2016 |access-date=October 31, 2018 }}</ref>
== Georgia House of Representatives == [[File:Geoff Duncan.jpg|thumb|Duncan as a candidate for the Georgia House of Representatives in 2012|194x194px]] Duncan successfully ran to represent the newly created 26th district of the Georgia House of Representatives in the 2012 election.<ref>{{cite web |first=Greg |last=Bluestein |date=November 18, 2016 |url=https://politics.myajc.com/blog/politics/former-pro-baseball-player-turned-georgia-legislator-makes-pitch-for-higher-office/8eGV4vwf1m7Fc2WHfOrDeN/ |title=Former pro baseball player turned Georgia legislator makes pitch for higher office |work=Atlanta Journal-Constitution |access-date=July 1, 2018}}</ref> In the Republican primary, he narrowly defeated former legislator Tom Knox, who held the seat before running for State Insurance Commissioner in 2010.
Following a recount, Duncan was found to have won 4,507 votes to 4,452 received by Knox.<ref>{{Cite web |date=August 9, 2012 |title=It's Official: Murphy, Duncan Declared Winners |url=https://patch.com/georgia/cumming/it-s-official-murphy-duncan-declared-winners |access-date=August 16, 2024 |website=Cumming, GA Patch |language=en}}</ref> Duncan's campaign emphasized creating private sector jobs, reducing government spending, and supporting conservation efforts at Lake Lanier.<ref>{{Cite web |author=Staff Reports |date=February 9, 2012 |title=Geoff Duncan announces bid for Forsyth County's newly created 26th District |url=https://www.appenmedia.com/news/geoff-duncan-announces-bid-for-forsyth-countys-newly-created-26th-district/article_a1900857-0505-5189-ba7a-88c81fe7548e.html |access-date=August 16, 2024 |website=Appen Media |language=en}}</ref>
In 2014, Duncan ran for reelection, defeating Knox in a rematch with 61% of the vote. He faced no opposition from Democrats in the general election.<ref>{{Cite web |date=February 9, 2012 |title=Geoff Duncan announces bid for Forsyth County's newly created 26th District |url=https://www.appenmedia.com/news/geoff-duncan-announces-bid-for-forsyth-countys-newly-created-26th-district/article_a1900857-0505-5189-ba7a-88c81fe7548e.html |access-date=August 16, 2024 |website=Appen Media |language=en}}</ref> Duncan was once again reelected in the 2016 election. As a state legislator, he helped lead efforts to pass Michael’s Law, a bill that forbids individuals under the age of 21 from working as bouncers at a bar.<ref name=":0" />
== Lieutenant Governor of Georgia ==
=== 2018 election === thumb|228x228px|Duncan as a candidate for Lieutenant Governor of Georgia in 2018. Duncan announced he would run for lieutenant governor of Georgia on April 10, 2017.<ref name=":0">{{cite web |first=Robert |last=Oldham |url=https://www.georgiapol.com/2017/04/10/state-rep-geoff-duncan-running-lieutenant-governor/ |title=State Rep. Geoff Duncan is Running for Lieutenant Governor |date=April 10, 2017 |website=GeorgiaPol |access-date=July 31, 2018}}</ref> He resigned from the Georgia House in September 2017 to focus on running for lieutenant governor in 2018.<ref>{{cite news |title=Duncan resigns to focus on LG bid—and slams Shafer 'charade' |first=Greg |last=Bluestein |url=https://www.ajc.com/blog/politics/duncan-resigns-focus-bid-and-slams-shafer-charade/O9LC2sTzihkwxEPNKDjhXM/ |access-date=January 14, 2019 |date=August 28, 2017 |work=Atlanta Journal-Constitution}}</ref><ref>{{cite web |first=Isabel |last=Hughes |url=https://www.forsythnews.com/local/state-government/businessman-announces-candidacy-replace-district-26-state-rep-geoff-duncan/ |title=Businessman announces candidacy to replace District 26 state Rep. Geoff Duncan |website=Forsyth County News |date=May 3, 2017 |access-date=July 31, 2018}}</ref> He was described as an "underdog" candidate against David Shafer, who had served as president pro tempore of the Georgia State Senate.<ref name=":1">{{Cite news |last=Prabhu |first=Maya |title=Duncan faces uphill battle against Shafer in lieutenant governor race |url=https://www.ajc.com/news/state--regional-govt--politics/duncan-faces-uphill-battle-against-shafer-lieutenant-governor-race/MYZw3Nw2A0T5lCqGWSyxfL/ |access-date=August 16, 2024 |work=The Atlanta Journal-Constitution |language=English |issn=1539-7459}}</ref>
On May 22, 2018, Shafer received 48.9% of the vote in the Republican primary with Duncan coming in second place with 26.6%. Because no candidate received a majority of votes, the election then went to a runoff held on July 24.<ref>{{cite web |url=http://results.enr.clarityelections.com/GA/74658/Web02-state.203322/#/ |title=Election Night Reporting |publisher=Results.enr.clarityelections.com |access-date=July 31, 2018}}</ref> Duncan acknowledged that he faced an uphill battle against Shafer in the runoff election.<ref name=":1" /> The runoff election focused largely on Shafer's record at the capitol and a number of ethical questions surrounding his candidacy.<ref>{{cite web |last=Salzer |first=James |date=March 9, 2018 |url=https://www.ajc.com/news/state--regional-govt--politics/georgia-legislator-accused-sexual-harassment-lobbyist/6jIBY1kHYwr4kC5Gb5uo8J/ |title=Georgia legislator accused of sexual harassment by lobbyist |website=Atlanta Journal-Constitution |access-date=July 31, 2018}}</ref>
On July 24, Duncan, previously considered a longshot candidate defeated Shafer with 50.16% of the vote.<ref>{{cite web |first=Tim |last=Darnell |date=August 2, 2018 |url=https://www.11alive.com/article/news/politics/no-recount-in-gop-lieutenant-governors-runoff-duncan-declares-victory/85-579799227 |website=WXIA-TV |title=No recount in GOP lieutenant governor's runoff; Duncan declares victory|access-date=January 14, 2019}}</ref> His victory was described as an upset by ''The Atlanta Journal-Constitution''.<ref>{{Cite web |last1=Hallerman |first1=Tamar |last2=Bluestein |first2=Greg |title=The latest: Duncan upsets Shafer in Lt. Gov. squeaker |url=https://www.ajc.com/blog/politics/live-updates-georgia-voters-hit-polls-determine-party-nominees/fZ8IqWUke1nHGbQTVzTZiK/ |access-date=August 16, 2024 |website=Politics (The Atlanta Journal-Constitution) |language=English}}</ref> He defeated Democratic nominee Sarah Riggs Amico in the general election, receiving nearly 52% of the vote and avoiding another runoff.<ref>{{Cite web| url=https://www.forsythnews.com/local/state-government/duncan-wins-lt-gov-race/ |title=Geoff Duncan set to become first-ever Georgia lieutenant governor from Forsyth County |website=www.forsythnews.com}}</ref>
=== Tenure === Duncan was inaugurated lieutenant governor on January 14, 2019.<ref>{{Cite web |url=https://www.wtvm.com/2019/01/14/watch-live-brian-kemp-sworn-rd-governor-georgia/ |title=Brian Kemp sworn in as 83rd Governor of Georgia |website=www.wtvm.com|date=January 15, 2019 }}</ref> As lieutenant governor, Duncan highlighted efforts by the Kemp administration on healthcare policy, and stated his wish for Georgia to become the "technology capital of the East Coast".<ref>{{Cite web |last=Mittelhammer |first=Megan |date=September 10, 2019 |title=Lt. Gov. Geoff Duncan addresses upcoming state legislation at Clarke County Republican Party meeting |url=https://www.redandblack.com/athensnews/lt-gov-geoff-duncan-addresses-upcoming-state-legislation-at-clarke-county-republican-party-meeting/article_2a27cc4e-d389-11e9-a8ea-0b79f74e1764.html |access-date=August 16, 2024 |website=The Red & Black |language=en}}</ref>[[File:David Perdue and Geoff Duncan.jpg|thumb|Duncan (right) with U.S. Senator David Perdue in 2019.|left]]On December 6, 2020, Duncan and Governor Brian Kemp put out a joint statement explaining that calling a joint session of the Georgia General Assembly to appoint their own electors to send to the United States Electoral College would be unconstitutional.<ref>{{Cite web |title=Gov. Kemp, Lt. Gov. Duncan say no to special session over election, explain why |url=https://www.11alive.com/article/news/politics/elections/kemp-duncan-statement-special-session-calls/85-ebb26992-e681-4ccf-92bf-556c85b4f5d7 |access-date=January 13, 2021 |website=11Alive.com |date=December 7, 2020 |language=en-US}}</ref> Following unsuccessful efforts to overturn the election of Democratic candidate Joe Biden in the 2020 presidential election, in March 2021 Georgia Republicans enacted the controversial Election Integrity Act of 2021 that imposed new restrictions on voting. Days later, Duncan said during a CNN interview that momentum for the legislation grew from "the fallout from the ten weeks of misinformation that flew in from former President Donald Trump. I went back over the weekend to really look at where this really started to gain momentum in the legislature, and it was when Rudy Giuliani showed up in a couple of committee rooms and spent hours spreading misinformation and sowing doubt across, you know, hours of testimony."<ref>{{Cite web |url=https://www.cnn.com/2021/04/07/politics/geoff-duncan-voter-fraud-cnntv/index.html |title=Georgia's GOP lieutenant governor says Giuliani's false fraud claims helped lead to restrictive voting law |last1=Murray |first1=Sara |last2=Morris |first2=Jason |website=CNN |date=April 7, 2021 }}</ref>
In April 2021, Duncan's chief of staff stated that he was unlikely to run for a second term, after he openly contradicted false claims of election fraud in the 2020 presidential election. His chief of staff added that Duncan had yet to make a final decision about whether to run again in 2022.<ref>{{Cite web |date=April 8, 2021 |title=Georgia Lt. Gov. unlikely to run again after taking on Trump |url=https://apnews.com/article/donald-trump-georgia-elections-b63917f3fc23580e0e06e0bb9a76e237 |access-date=April 10, 2021 |website=AP NEWS}}</ref> On May 17, 2021, Duncan announced that he would not be seeking a second term.<ref>{{Cite news |last=Bluestein |first=Greg |date=May 17, 2021 |title=Lt. Gov. Geoff Duncan, a Trump critic, will not run for a second term in 2022 |work=The Atlanta Journal-Constitution |url=https://www.ajc.com/politics/politics-blog/lt-gov-geoff-duncan-a-trump-critic-will-not-run-for-a-second-term-in-2022/C7ANUFARURAEJH5ACDE3L2AD5Y/ |access-date=May 17, 2021}}</ref> An October 2021 trip to New Hampshire to promote his book ''GOP 2.0'', which outlines plans for a post-Trump future for the Republican Party, fueled speculation in his home state that Duncan may be positioning himself to run for president in 2024.<ref>{{cite web |url=https://www.ajc.com/politics/politics-blog/the-jolt-geoff-duncan-for-president/E3TXXC7F3ZAV3KHIUH2DRFH6JI/ |title=The Jolt: Geoff Duncan for president? |date=October 20, 2021 |work=The Atlanta Journal-Constitution |first1=Patricia |last1=Murphy |first2=Tia |last2=Mitchell |first3=Greg |last3=Bluestein}}</ref><ref>{{cite web |url=https://www.foxnews.com/politics/gops-short-term-sugar-high-in-donald-trump-wont-last-georgias-republican-lt-gov-predicts |title=GOP's 'short term sugar high in Donald Trump' won't last, Georgia's Republican lt. gov. predicts |date=October 21, 2021 |work=Fox News |first=Paul |last=Steinhauser}}</ref> Duncan said he did not vote for either Raphael Warnock or Herschel Walker in the 2022 U.S. Senate election.<ref>{{Cite web |last=Schonfeld |first=Zach |date=December 1, 2022 |title=Republican Georgia lieutenant governor says he couldn't vote for Walker |url=https://thehill.com/homenews/campaign/3757720-republican-georgia-lieutenant-governor-says-he-couldnt-vote-for-walker/ |access-date=December 1, 2022 |website=The Hill |language=en-US}}</ref>
== Post-lieutenant governor career == In May 2024, during the lead-up to the 2024 presidential election, Duncan wrote an opinion piece titled "Why I'm Voting for Biden and other Republicans should, too", in the ''Atlanta Journal-Constitution''.<ref>{{cite web |url=https://www.ajc.com/opinion/geoff-duncan-why-im-voting-for-biden-and-other-republicans-should-too/LFLE5YWCBBA6VDGJAJKMNPCDKQ/ |title=Geoff Duncan: Why I'm voting for Biden and other Republicans should, too |date=May 6, 2024 |first=Geoff |last=Duncan |work=The Atlanta Journal-Constitution |access-date=May 6, 2024}}</ref> After Biden stepped aside, Duncan endorsed Kamala Harris.<ref>{{Cite news |last=Groves |first=Caleb |title=Geoff Duncan endorses Kamala Harris and says he is 'committed to beating Donald Trump' |url=https://www.ajc.com/politics/geoff-duncan-endorses-kamala-harris-and-says-he-is-committed-to-beating-donald-trump/M3MBQT5VWRCJVL37ZOZACFEPP4/ |access-date=July 24, 2024 |work=The Atlanta Journal-Constitution |language=English |issn=1539-7459}}</ref> Duncan urged Republicans to support Harris' presidential campaign,<ref>{{Cite web |last=Suter |first=Tara |date=August 14, 2024 |title=Georgia Republican urges more GOP support for Harris: 'Reclaim this country's future' |url=https://thehill.com/homenews/campaign/4827992-geoff-duncan-backs-kamala-harris/ |access-date=August 15, 2024 |website=The Hill}}</ref> giving a speech directed to them at the Democratic National Convention.<ref>{{Cite web |last=Manchester |first=Julia |date=August 21, 2024 |title=Georgia Republican: Voting for Harris means 'you're a patriot' |url=https://thehill.com/homenews/campaign/4840725-geoff-duncan-republican-kamala-harris/ |access-date=August 21, 2024 |website=The Hill}}</ref> === Expulsion by Georgia Republican Party === On January 6, 2025, the Georgia Republican Party's executive committee unanimously passed a resolution to expel Duncan from the state party because of his support for Kamala Harris in the 2024 elections.<ref name=":2">{{cite news |last1=Bluestein |first1=Greg |last2=Mitchell |first2=Tia |last3=Murphy |first3=Patrick |last4=Beam |first4=Adam |url=https://www.ajc.com/politics/politically-georgia/georgia-gop-expels-geoff-duncan-after-his-support-of-kamala-harris/AV7AK5UOEFBTHIXTRDZEZCTRUU/ |title=Georgia GOP expels Geoff Duncan after his support of Kamala Harris |work=Atlanta Journal-Constitution |date=January 7, 2025 |access-date=January 7, 2025 |archive-url=https://web.archive.org/web/20250107212347/https://www.ajc.com/politics/politically-georgia/georgia-gop-expels-geoff-duncan-after-his-support-of-kamala-harris/AV7AK5UOEFBTHIXTRDZEZCTRUU/ |archive-date=January 7, 2025 |url-status=live}}</ref><ref name=":3">{{Cite web |last=Suter |first=Tara |date=January 7, 2025 |title=Georgia GOP boots former lieutenant governor who backed Harris |url=https://thehill.com/homenews/campaign/5071440-geoff-duncan-georgia-gop-donald-trump/ |website=The Hill}}</ref> The Georgia GOP asked news media to refer to Duncan "as 'expelled Republican Geoff Duncan' or 'ousted Republican Geoff Duncan.'"<ref name=":2" /><ref name=":3" /> Duncan responded on social media, saying "Hard to believe this is a good use of time for a party that's only got a limited amount of time to figure out mass deportations, world peace and global tariffs. Learn how to take a victory lap not light another dumpster fire."<ref>{{Cite web |last=Williams |first=Dave |title=Geoff Duncan booted from Georgia Republican Party |url=https://www.savannahnow.com/story/news/politics/state/2025/01/07/duncan-has-forfeited-any-claim-to-being-even-a-nominal-republican/77508897007/ |access-date=January 9, 2025 |website=Savannah Morning News |language=en-US}}</ref>
Duncan at that time said he still considered himself a Republican and that he is trying to "save his party from Trump", according to Atlanta's WSB-TV.<ref>{{Cite web |date=January 7, 2025 |title=Former GA Lt. Gov. Geoff Duncan 'expelled' from Georgia Republican Party |url=https://www.wsbtv.com/news/local/atlanta/former-ga-lt-governor-expelled-republican-party/BQEQACKYFBBVZA23OFSF7WXMJI/ |access-date=January 9, 2025 |website=WSB-TV |language=en}}</ref> According to the ''Washington Times'', Duncan would not be permitted to run for elected office as a Republican.<ref>{{Cite web |last=Morton |first=Victor |date=January 7, 2025 |title=Trump critic expelled from Georgia GOP in unanimous vote |url=https://www.washingtontimes.com/news/2025/jan/7/geoff-duncan-expelled-georgia-gop-unanimous-vote/ |access-date=January 9, 2025 |website=The Washington Times |language=en-US}}</ref>
=== Joining the Democratic Party and gubernatorial campaign === {{Main|2026 Georgia gubernatorial election}} On a July 1, 2025, episode of the ''Atlanta Journal-Constitution's'' "Politically Georgia" podcast, Duncan expressed his continued frustration with the President Trump-led Republican Party, and discussed rumors that he might run for Georgia governor as a Democrat.<ref>{{cite web|url=https://www.ajc.com/politics/2025/07/geoff-duncan-weighs-whether-to-run-for-georgia-governor-as-a-democrat/|title=Geoff Duncan weighs whether to run for Georgia governor - as a Democrat results|access-date=July 1, 2025}}</ref>
In an editorial for the ''Atlanta Journal-Constitution'' published on August 5, 2025, Duncan announced he had joined the Democratic Party, and stated that the party switch was rooted in his desire to better "love thy neighbor" through "public policy."<ref>{{Cite news |last=Gans|first=Jared |title=Former Georgia lieutenant governor joins Democratic Party |language=en |work=The Hill |url=https://thehill.com/homenews/state-watch/5439065-geoff-duncan-georgia-democratic-party/ |access-date=August 7, 2025|date=August 7, 2025}}</ref>
He announced his gubernatorial campaign as a Democrat on September 16, 2025.<ref name=":4" /> He faced former Atlanta mayor Keisha Lance Bottoms, state senator Jason Esteves, former DeKalb County CEO Mike Thurmond, and state representative Derrick Jackson in the Democratic primary.<ref>{{cite web|last=Amy|first=Jeff|title=Georgia Democrats try to make their move in a jumbled, low-dollar primary for governor|website=AP News|date=April 17, 2026|url=https://apnews.com/article/georgia-governor-democrats-esteves-bottoms-thurmond-duncan-544746f17a1fbea16e44212dfcafd6aa|access-date=May 20, 2026}}</ref> Bottoms won the nomination.<ref>{{cite web|last=Vakil|first=Caroline|title=Bottoms clinches Democratic nomination in Georgia governor's race|website=The Hill|date=May 19, 2026|url=https://thehill.com/homenews/state-watch/5884932-bottoms-georgia-democratic-governor-race/|access-date=May 20, 2026}}</ref>
== Personal life == Duncan and his wife, Brooke, live in Cumming, Georgia. They have three sons.<ref>{{cite web |url=https://www.ajc.com/news/state--regional-govt--politics/outsider-more-geoff-duncan-set-georgia-lieutenant-governor/qRYQZHqd07V6mBSsOCMYKJ/ |title='Outsider' no more, Geoff Duncan set to be Georgia's lieutenant governor |date=January 14, 2019 |first=Maya T. |last=Prabhu |work=The Atlanta Journal-Constitution |access-date=July 17, 2020}}</ref>
== Electoral history == {{Election box begin no change|title=Georgia lieutenant gubernatorial Republican primary, 2018<ref>{{cite web |url=http://results.enr.clarityelections.com/GA/74658/Web02-state.200881/#/cid/20010 |title=General Primary and Nonpartisan General Election |work=Georgia Secretary of State |access-date=November 4, 2018}}</ref>}} {{Election box winning candidate with party link no change|party=Republican Party (United States)|candidate=David Shafer|votes=268,221|percentage=48.91}} {{Election box winning candidate with party link no change|party=Republican Party (United States)|candidate=Geoff Duncan|votes=146,163|percentage=26.65}} {{Election box candidate with party link no change|party=Republican Party (United States)|candidate=Rick Jeffares|votes=134,047|percentage=24.44}} {{Election box end}}
{{Election box begin no change|title=Georgia lieutenant gubernatorial Republican primary runoff, 2018<ref>{{cite web |url=http://results.enr.clarityelections.com/GA/76127/Web02-state.206999/#/cid/20010 |title=General Primary and Nonpartisan General Election Runoff |work=Georgia Secretary of State |access-date=November 4, 2022}}</ref>}} {{Election box winning candidate with party link no change|party=Republican Party (United States)|candidate=Geoff Duncan|votes=280,465|percentage=50.14}} {{Election box candidate with party link no change|party=Republican Party (United States)|candidate=David Shafer|votes=278,868|percentage=49.86}} {{Election box end}}
{{Election box begin no change|title=Georgia lieutenant gubernatorial election, 2018<ref>{{cite web |last= |first= |authorlink= |author1= |title=November 6, 2018 General Election |work= GA – Election Night Reporting |publisher=Georgia Secretary of State |date=November 10, 2018 |url= https://results.enr.clarityelections.com/GA/91639/Web02-state.220747/ |doi= |access-date=November 4, 2022}}</ref>}} {{Election box winning candidate with party link no change|party=Republican Party (United States)|candidate=Geoff Duncan|votes=1,951,738|percentage=51.63}} {{Election box candidate with party link no change|party=Democratic Party (United States)|candidate=Sarah Riggs Amico|votes=1,828,566|percentage=48.37}} {{Election box end}}
== Bibliography == * ''GOP 2.0'' (2021)
== References == {{reflist}}
== External links == * [https://www.duncanforgeorgia.com/ Campaign site] * {{CongLinks|votesmart=140301}} * {{baseballstats|brm=duncan001geo}} * {{C-SPAN|117024}}
{{s-start}} {{s-ppo}} {{s-bef|before=Casey Cagle}} {{s-ttl|title=Republican nominee for Lieutenant Governor of Georgia|years=2018}} {{s-aft|after=Burt Jones}} |- {{s-off}} {{s-bef|before=Casey Cagle}} {{s-ttl|title=Lieutenant Governor of Georgia|years=2019–2023}} {{s-aft|after=Burt Jones}} {{s-end}}
{{Lieutenant governors of Georgia}} {{Authority control}}
{{DEFAULTSORT:Duncan, Geoff}} Category:1975 births Category:21st-century members of the Georgia General Assembly Category:American athlete-politicians Category:American expatriate baseball players in Canada Category:Baseball pitchers Category:Baseball players from Westmoreland County, Pennsylvania Category:Brevard County Manatees players Category:Calgary Cannons players Category:Candidates in the 2026 United States elections Category:Georgia (U.S. state) Democrats Category:Georgia Tech Yellow Jackets baseball players Category:Kane County Cougars players Category:Lieutenant governors of Georgia (U.S. state) Category:Living people Category:Republican Party members of the Georgia House of Representatives Category:People from Cumming, Georgia Category:People from Johns Creek, Georgia Category:People from New Kensington, Pennsylvania Category:Portland Sea Dogs players Category:Utica Blue Sox players Category:Yarmouth–Dennis Red Sox players