2018 United States Senate Election In Delaware
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The 2018 United States Senate election in Delaware took place on November 6, 2018, to elect a member of the
United States Senate The United States Senate is a chamber of the Bicameralism, bicameral United States Congress; it is the upper house, with the United States House of Representatives, U.S. House of Representatives being the lower house. Together, the Senate and ...
to represent the State of
Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
, concurrently with other elections to the United States Senate,
elections An election is a formal group decision-making process whereby a population chooses an individual or multiple individuals to hold public office. Elections have been the usual mechanism by which modern representative democracy has operated ...
to the
United States House of Representatives The United States House of Representatives is a chamber of the Bicameralism, bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Artic ...
, and various
state State most commonly refers to: * State (polity), a centralized political organization that regulates law and society within a territory **Sovereign state, a sovereign polity in international law, commonly referred to as a country **Nation state, a ...
and
local elections Local may refer to: Geography and transportation * Local (train), a train serving local traffic demand * Local, Missouri, a community in the United States Arts, entertainment, and media * ''Local'' (comics), a limited series comic book by Bria ...
. The primary for this U.S. Senate election was held on Thursday, September 6, 2018. The Democratic Party nominated incumbent
U.S. Senator The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...
Tom Carper and the Republican Party nominated Sussex County Councilman Rob Arlett. Incumbent Democratic Senator
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
was re-elected to a fourth, and ultimately final, term. Despite Carper's victory, Arlett managed to flip Sussex County, typically a reliably Republican county in Delaware. This subsequently marked the first time Carper lost the county since his first election to the Senate in
2000 2000 was designated as the International Year for the Culture of Peace and the World Mathematics, Mathematical Year. Popular culture holds the year 2000 as the first year of the 21st century and the 3rd millennium, because of a tende ...
.


Background

Three-term Democratic Senator
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
was reelected with 66% of the vote in 2012 against Republican Kevin Wade. Carper, the incumbent U.S. senator, was challenged in the Democratic primary by
Dover Dover ( ) is a town and major ferry port in Kent, southeast England. It faces France across the Strait of Dover, the narrowest part of the English Channel at from Cap Gris Nez in France. It lies southeast of Canterbury and east of Maidstone. ...
activist
Kerri Evelyn Harris Kerri Evelyn Harris (born December 24, 1979) is an American activist and politician who is the Democratic state representative for Delaware's 32nd district. She was previously a Democratic candidate for United States Senate in 2018, mounting ...
. Carper previously faced a primary challenge in the 2012 election from businessman Keith Spanarelli. However, Carper defeated Spanarelli by around 70 points. Carper went on to defeat Harris by around 30 points. It was the most competitive Democratic U.S. Senate primary in Delaware in two decades. The main declared candidates in the Republican primary were Sussex County councilman Rob Arlett and businessman Gene Truono, with a perennial candidacy from businessman
Rocky De La Fuente Roque "Rocky" De La Fuente Guerra (born October 10, 1954) is an American businessman who has sought elected office. A perennial candidate, De La Fuente was the Reform Party nominee in the 2016 and 2020 United States presidential elections; he a ...
, who also ran for Senate in seven other states. Another candidate withdrew before the primary. Rob Arlett defeated Gene Truono in a landslide to win the Republican nomination.


Democratic primary


Candidates


Nominee

*
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
, incumbent
U.S. senator The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...
and 71st governor of Delaware


Eliminated in primary

*
Kerri Evelyn Harris Kerri Evelyn Harris (born December 24, 1979) is an American activist and politician who is the Democratic state representative for Delaware's 32nd district. She was previously a Democratic candidate for United States Senate in 2018, mounting ...
,
Dover Dover ( ) is a town and major ferry port in Kent, southeast England. It faces France across the Strait of Dover, the narrowest part of the English Channel at from Cap Gris Nez in France. It lies southeast of Canterbury and east of Maidstone. ...
activist and
U.S. Air Force The United States Air Force (USAF) is the air service branch of the United States Department of Defense. It is one of the six United States Armed Forces and one of the eight uniformed services of the United States. Tracing its origins to 1 ...
veteran


Withdrew

* Tykiem Booker, activist


Declined

*
Lisa Blunt Rochester Lisa LaTrelle Blunt Rochester (née Blunt; born February 10, 1962) is an American politician serving since 2025 as the junior United States senator from Delaware. From 2017 to 2025, she served as the U.S. representative for . A member of the ...
,
U.S. representative The United States House of Representatives is a chamber of the bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Article One of th ...
''(ran for
re-election The incumbent is the current holder of an office or position. In an election, the incumbent is the person holding or acting in the position that is up for election, regardless of whether they are seeking re-election. There may or may not be a ...
)''


Endorsements


Debates

Delaware newspaper ''
The News Journal ''The News Journal'' is a daily newspaper in Wilmington, Delaware. It is headquartered in unincorporated New Castle County, Delaware, near New Castle, and is owned by Gannett. History The ancestry of the News Journal reflects the mergers of ...
'' hosted a 90-minute debate on August 27, 2018, for the Democratic primary between
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
and Kerri Evelyn Harris at
Cab Calloway School of the Arts Cab Calloway School of the Arts (CCSA) is an arts-oriented magnet school in Wilmington, Delaware, operated by the Red Clay Consolidated School District. The school offers grades six through twelve and each student chooses a particular focus in t ...
. Republican candidate businessman Gene Truono answered questions from panelists before Carper and Harris debated. Sussex County Councilman Rob Arlett was also invited, but declined and claimed he had a scheduling conflict.
Full video of debate, Facebook


Polling


Results


Republican primary


Candidates


Nominee

*Rob Arlett, former Sussex County Councilman, and former Delaware State Chairman for the Trump campaign


Eliminated in primary

*
Rocky De La Fuente Roque "Rocky" De La Fuente Guerra (born October 10, 1954) is an American businessman who has sought elected office. A perennial candidate, De La Fuente was the Reform Party nominee in the 2016 and 2020 United States presidential elections; he a ...
, businessman and
perennial candidate A perennial candidate is a political candidate who frequently runs for elected office and rarely, if ever, wins. Perennial candidates are most common where there is no limit on the number of times that a person can run for office and little cost ...
*Gene Truono, businessman and former chief compliance officer at
PayPal PayPal Holdings, Inc. is an American multinational financial technology company operating an online payments system in the majority of countries that support E-commerce payment system, online money transfers; it serves as an electronic alter ...


Withdrew

* Chuck Boyce, businessman (endorsed Rob Arlett)


Declined

*
Ken Simpler Kenneth Alvin Simpler, Jr. (born July 15, 1967) is an American politician who served as Delaware State Treasurer from 2015 to 2019. He is the last Republican to win and hold a statewide office in Delaware. Education Simpler attended high school ...
, State Treasurer (running for re-election) * Kevin Wade, businessman and candidate for Senate in
2012 2012 was designated as: *International Year of Cooperatives *International Year of Sustainable Energy for All Events January *January 4 – The Cicada 3301 internet hunt begins. * January 12 – Peaceful protests begin in the R ...
and
2014 The year 2014 was marked by the surge of the Western African Ebola epidemic, West African Ebola epidemic, which began in 2013, becoming the List of Ebola outbreaks, most widespread outbreak of the Ebola, Ebola virus in human history, resul ...
(endorsed Rob Arlett)


Endorsements


Debates

Councilman Rob Arlett and businessman Gene Truono had four debates in total. They were normally live streamed on
Facebook Facebook is a social media and social networking service owned by the American technology conglomerate Meta Platforms, Meta. Created in 2004 by Mark Zuckerberg with four other Harvard College students and roommates, Eduardo Saverin, Andre ...
and uploaded to
YouTube YouTube is an American social media and online video sharing platform owned by Google. YouTube was founded on February 14, 2005, by Steve Chen, Chad Hurley, and Jawed Karim who were three former employees of PayPal. Headquartered in ...
. A fifth debate was planned, but Truono withdrew from the debate because he the organizers refused to give him control over what questions could not be asked. Instead organizers held a forum with all the other candidates for the U.S. Senate and other state offices. Five candidates attended that forum.
First debate, YouTubeSecond debate, Part 1, YouTubeSecond debate, Part 2, YouTubeThird debate, Part 1, YouTubeThird debate, Part 2, YouTubeFourth debate, YouTube


Polling


Results


Green primary


Candidates


Nominee

* Demitri Theodoropoulos, small business owner


Declined

* Andrew Groff, businessman and
perennial candidate A perennial candidate is a political candidate who frequently runs for elected office and rarely, if ever, wins. Perennial candidates are most common where there is no limit on the number of times that a person can run for office and little cost ...


Endorsements


Libertarian primary


Candidates


Nominee

*Nadine Frost,
New Castle County New Castle County is the northernmost of the three counties of the U.S. state of Delaware (New Castle, Kent, and Sussex). As of the 2020 census, the population was 570,719, making it the most populous county in Delaware, with nearly 60% of the ...
chairwoman of
Libertarian Party of Delaware The Libertarian Party of Delaware (LPDE) is the Delaware affiliate of the national Libertarian Party. It was founded in 1975. Leadership LPDE Platform Libertarian philosophy centers on individual rights and the non-aggression principle (NAP) ...
and
Libertarian Libertarianism (from ; or from ) is a political philosophy that holds freedom, personal sovereignty, and liberty as primary values. Many libertarians believe that the concept of freedom is in accord with the Non-Aggression Principle, according ...
nominee for Wilmington City Council in 2016


Independents

Not to be confused with the
Independent Party of Delaware The Independent Party of Delaware (IPoD) is a political party in the State of Delaware, United States. As of March 2021, it is the third largest political party in Delaware with 9,443 registered voters. The preamble outlines the party's goals: " ...
, which did not run a candidate for the 2018 United States Senate election.


Candidates


Declared

* Barry Eveland (write-in) * Todd Farina, ticket company owner (write-in) * Matthew Water Stout, write-in presidential candidate in
2016 2016 was designated as: * International Year of Pulses by the sixty-eighth session of the United Nations General Assembly. * International Year of Global Understanding (IYGU) by the International Council for Science (ICSU), the Internationa ...
(write-in)


General election


Endorsements

Bold text indicates endorsement was given before the primary.


Debates

with Kerri Evelyn Harris and Gene Truono
On August 20, 2018, the Greater Hockessin Area Development Association (GHADA) hosted a two-hour debate at the
Hockessin Hockessin () is a census-designated place (CDP) in New Castle County, Delaware, United States. The population was 13,478 at the 2020 Census. History Hockessin came into existence as a little village in 1688 when several families settled in the ...
Memorial Hall between Democratic candidate Kerri Evelyn Harris and Republican candidate Gene Truono.
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
and Rob Arlett were also invited to the debate, but did not attend. Carper was not present because of the
U.S. Senate The United States Senate is a chamber of the bicameral United States Congress; it is the upper house, with the U.S. House of Representatives being the lower house. Together, the Senate and House have the authority under Article One of the ...
's extended session due to session ceasing early the Thursday prior because of the death of former governor and U.S. Senator of
Nevada Nevada ( ; ) is a landlocked state in the Western United States. It borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. Nevada is the seventh-most extensive, th ...
,
Paul Laxalt Paul Dominique Laxalt ( ; August 2, 1922 – August 6, 2018) was an American attorney and politician who served as the 22nd governor of Nevada from 1967 to 1971 and a United States senator representing Nevada from 1974 until 1987. A member ...
. Arlett declined and claimed he had a scheduling conflict.
Full video of debate, Facebook
August 20, 2018 with Tom Carper and Rob Arlett
The debate gained national attention after Republican candidate Rob Arlett brought up Democratic senator
Tom Carper Thomas Richard Carper (born January 23, 1947) is an American politician and former military officer who served from 2001 to 2025 as a United States Senate, United States senator from Delaware. A member of the Democratic Party (United States), D ...
’s past controversy of domestic abuse.
Full video of debate, C-SPAN
October 17, 2018 with Tom Carper, Rob Arlett, Nadine Frost, and Demitri Theodoropoulos
Full video of debate, WHYY
October 30, 2018


Predictions


Polling

with Tom Carper and Gene Truono
with Kerri Evelyn Harris and Rob Arlett
with Kerri Evelyn Harris and Gene Truono


Results


By county

Counties that flipped from Democratic to Republican *
Sussex Sussex (Help:IPA/English, /ˈsʌsɪks/; from the Old English ''Sūþseaxe''; lit. 'South Saxons'; 'Sussex') is an area within South East England that was historically a kingdom of Sussex, kingdom and, later, a Historic counties of England, ...
(largest city: Seaford)


See also

*
2018 United States Senate elections The 2018 United States Senate elections were held on November 6, 2018. Among the 100 seats, the 33 of Classes of United States senators, Class 1 were contested in regular elections while two others were contested in special elections due to Sen ...
* Elections in Delaware


References


External links


Candidates
at
Vote Smart Vote Smart, formerly called Project Vote Smart, is an American non-profit, non-partisan research organization that collects and distributes information on candidates for public office in the United States. It covers candidates and elected offic ...

Candidates
at
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Campaign finance
at FEC
Campaign finance
at
OpenSecrets OpenSecrets is a nonprofit organization based in Washington, D.C., that tracks and publishes data on campaign finance and lobbying, including a revolving door database which documents the individuals who have worked in both the public sector an ...
Official campaign websites
Rob Arlett (R) for SenateTom Carper (D) for SenateDemitri Theodoropoulos (G) for Senate
{{2018 United States elections
2018 Events January * January 1 – Bulgaria takes over the Presidency of the Council of the European Union, after the Estonian presidency. * January 4 – SPLM-IO rebels loyal to Chan Garang Lual start a raid against Juba, capital of ...
Delaware Delaware ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic and South Atlantic states, South Atlantic regions of the United States. It borders Maryland to its south and west, Pennsylvania to its north, New Jersey ...
United States Senate The United States Senate is a chamber of the Bicameralism, bicameral United States Congress; it is the upper house, with the United States House of Representatives, U.S. House of Representatives being the lower house. Together, the Senate and ...