2018 New Hampshire Senate election

In the 2016 New Hampshire state elections, Republicans held on to their majority in the New Hampshire Senate by a margin of 14–10. Republicans also maintained control of the New Hampshire House of Representatives. In addition, Republican Chris Sununu won the open 2016 New Hampshire gubernatorial election giving the New Hampshire Republican Party total control of the state government for the first time since Republican governor Craig Benson was defeated by Democrat John Lynch in the 2004 New Hampshire gubernatorial election.

In the aftermath of his 2016 election, then president-elect Donald Trump claimed in a tweet that voter fraud had occurred in New Hampshire.{{cite news|title=Trump's baseless assertions of voter fraud called 'stunning'|url=https://www.politico.com/story/2016/11/trump-illegal-voting-clinton-231860|access-date=25 December 2019|newspaper=Politico|date=27 November 2016}} In February 2017, Trump advisor Stephen Miller reaffirmed that position by claiming "busing voters in to New Hampshire is widely known by anyone who’s worked in New Hampshire politics".{{cite news|title=Voter Fraud in New Hampshire? Trump Has No Proof and Many Skeptics|url=https://www.nytimes.com/2017/02/13/us/voter-fraud-new-hampshire-gop.html|access-date=25 December 2019|newspaper=New York Times|date=13 February 2017}} These claims were called "baseless" by several observers.{{cite news|title=No Evidence of Busing Voters to N.H.|url=https://www.factcheck.org/2017/02/no-evidence-of-busing-voters-to-n-h/|access-date=25 December 2019|newspaper=Factcheck|date=14 February 2017}}

In response to those allegations, the Republican majorities in the New Hampshire General Court drafted bills changing voter registration rules. Senate Bill 3 (SB 3) passed both chambers of the New Hampshire General Court on party-line votes and was signed in to law by Governor Sununu on July 10, 2017.{{cite news|title=Sununu signs controversial GOP voter registration measure into law|url=https://www.wmur.com/article/sununu-signs-controversial-voter-registration-measure-into-law/10286339|access-date=25 December 2019|newspaper=WMUR9|date=10 July 2017}} The new law requires voters to declare a "domicile" in New Hampshire. It also included jail sentences of up to one year or a fine of up to $5,000, if voters registered and not provided necessary paperwork as proof within 10 day or 30 days in smaller towns.{{cite news|title=Court blocks penalties in new New Hampshire voting law|url=https://www.politico.com/blogs/under-the-radar/2017/09/12/new-hampshire-voting-law-court-ruling-242587|access-date=25 December 2019|newspaper=Politico|date=12 September 2017}} Republicans pointed to over 5,000 voters who voted in the 2016 election after identifying with an out-of-state driver's licence, that have not gotten an in-state licence as of September 2017.{{cite news|title=Updated: New voting statistics show 6,540 people registered to vote in NH last year using out-of-state driver's licenses as IDs|url=https://www.wmur.com/article/new-voting-statistics-show-6540-people-registered-to-vote-in-nh-last-year-using-out-of-state-drivers-licenses-as-ids/12196129|access-date=25 December 2019|newspaper=WMUR9|date=8 September 2017}} Democrats suspected a voter suppression scheme, that targeted college students, that they think are most likely to use identification issued by other states.{{cite news|title=On eve of voter commission hearing in N.H., Bill Gardner in middle of partisan divide|url=https://www.concordmonitor.com/Bill-Gardner-secretary-of-state-under-microscope-for-role-in-election-commission-12430427|access-date=25 December 2019|newspaper=Concord Monitor|date=11 September 2017}}

The League of Women Voters, the New Hampshire Democratic Party and several college students challenged the new law in court. They pointed to the Supreme Court's decision in Symm v. United States, that guaranteed college students the right to vote at their university. The trial judge of the Hillsborough Superior Court decided on October 22, 2018, that the state cannot apply the law in the upcoming elections.{{cite news|title=Judge bars New Hampshire proof of residency requirement for new voters|url=https://www.reuters.com/article/us-usa-election-new-hampshire/judge-bars-new-hampshire-proof-of-residency-requirement-for-new-voters-idUSKCN1MW2Y8|access-date=25 December 2019|newspaper=Reuters|date=23 October 2018}} The Attorney General of New Hampshire's office then filed an emergency motion with the New Hampshire Supreme Court.{{cite news|title=N.H. Supreme Court restores registration forms, process of 2017 'proof-of-domicile' law SB 3|url=https://www.wmur.com/article/nh-supreme-court-restores-registration-forms-process-of-2017-proof-of-domicle-law-sb-3/24286469|access-date=25 December 2019|newspaper=WMUR9|date=26 October 2018}} The State Supreme Court sided with the state in a unanimous 5-0 decision arguing that overturning the law so close to elections was potentially confusing and disruptive.{{cite news|title=Supreme Court sides with state in SB 3 case|url=https://www.nashuatelegraph.com/news/local-news/2018/10/27/supreme-court-sides-with-state-in-sb-3-case/|access-date=25 December 2019|newspaper=Nashua Telegraph|date=27 October 2018}} The State Supreme Court did not decide on the merits of the law in this decision. Therefore, SB3 was first applied in the 2018 elections.

In the 2018 elections, Democrats saw gains in state elections across the countries, gaining multiple Governorships and legislative chambers. Democrats also won control of the United States House of Representatives for the first time since 2010. Commentators called the election results a "blue wave", that was especially pronounced in state elections.{{cite news|title=The blue wave was big — and significant — in state legislatures|url=https://www.washingtonpost.com/news/monkey-cage/wp/2018/11/12/the-blue-wave-was-big-and-significant-in-state-legislatures/|access-date=25 December 2019|newspaper=Washington Post|date=12 November 2018}}{{cite news|title=The Biggest Shift of the Midterms Wasn't in Congress—It Was in the States|url=https://fortune.com/2018/11/12/state-legislatures-blue-wave-2018/|access-date=25 December 2019|newspaper=Fortune|date=12 November 2018}}

In the New Hampshire Senate, Democrats were able to flip Districts 9, 11, 12, 23 and 24, while the Republicans flipped District 1. The Democratic gains were mostly in less rural areas in Southern and Eastern New Hampshire while the Republican gains were limited to the rural Senate District 1 in the North Country. The incumbent Democratic senator in District 1, Jeff Woodburn, had been accused of domestic violence and criminally charged a few months before the election.{{cite news|title=In the North Country, a district divided over Sen. Jeff Woodburn|url=https://www.concordmonitor.com/Jeff-Woodburn-David-Starr-New-Hampshire-state-senate-race-21263383|access-date=25 December 2019|newspaper=Concord Monitor|date=3 November 2018}}{{cite news|title=N.H. Lawmaker Accused Of Domestic Violence Loses Reelection Bid|url=https://www.nhpr.org/post/nh-lawmaker-accused-domestic-violence-loses-reelection-bid#stream/0|access-date=25 December 2019|newspaper=New Hampshire Public Radio|date=7 November 2018}}

Source: Official results.{{cite web|url=https://sos.nh.gov/18GenResults.aspx/|title=New Hampshire 2018 General Election Information and Results|publisher=New Hampshire Secretary of State|access-date=25 December 2019}}

Incumbent Democratic state senator Jeff Woodburn had represented the New Hampshire's 1st State Senate District since 2012. Senator Woodburn had also served as Senate Minority Leader since 2014. Woodburn was arrested on August 2, 2018, on simple assault, domestic violence, criminal mischief, and criminal trespass charges. Democratic Party Chairman Raymond Buckley called on him to resign.http://www.unionleader.com/State-senator-facing-nine-criminal-charges {{Webarchive|url=https://web.archive.org/web/20180802230157/http://www.unionleader.com/State-senator-facing-nine-criminal-charges |date=2018-08-02 }} State Senator Facing Nine Criminal Charges On August 6, Woodburn announced he would resign as the minority leader but would remain as a senator.{{cite news|title=State Senate Democrats choose Soucy to succeed Woodburn as minority leader|url=https://www.wmur.com/article/woodburn-steps-down-as-state-senate-minority-leader-but-not-resigning-from-senate/22654272|access-date=25 December 2019|newspaper=WMUR9|date=6 August 2018}} He won the Democratic primary on September 11, 2018, but was defeated by Republican David Starr in the 2018 general election.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 1}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = David Starr

| votes = 10,560

| percentage = 54.3

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jeff Woodburn (incumbent)

| votes = 8,739

| percentage = 44.9

| change =

}}

{{Election box candidate with party link no change

| party = Independent (politician)

| candidate = Kathleen Kelley (write-in)

| votes = 148

| percentage = 0.8

| change =

}}

{{Election box total no change

| votes = 19,447

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Republican Party (United States)

| loser = Democratic Party (United States)

}}

{{Election box end}}

Incumbent Republican state senator Bob Giuda had represented the New Hampshire's 2nd State Senate District since 2016. He won reelection against Democrat Bill Bolton.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 2}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Bob Giuda (incumbent)

| votes = 12,127

| percentage = 51.6

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Bill Bolton

| votes = 11,376

| percentage = 48.4

| change =

}}

{{Election box total no change

| votes = 23,503

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Jeb Bradley had represented the New Hampshire's 3rd State Senate District since 2009. He won reelection against Democrat Christopher Meier and Libertarian Tania Butler.{{Cite web|url=https://ballotpedia.org/New_Hampshire_State_Senate_elections,_2018|title=New Hampshire State Senate elections, 2018|publisher=Ballotpedia|access-date=25 December 2019}}

{{Election box open primary begin no change| title= 2018 New Hampshire State Senate election, District 3}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Jeb Bradley (incumbent)

| votes = 4,326

| percentage = 77.4

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Steven Steiner

| votes = 1,262

| percentage = 22.6

| change =

}}

{{Election box total no change

| votes = 5,588

| percentage = 100

| change =

}}

{{Election box open primary general election no change}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Jeb Bradley (incumbent)

| votes = 14,841

| percentage = 56.6

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Christopher Meier

| votes = 10,895

| percentage = 41.5

| change =

}}

{{Election box candidate with party link no change

| party = Libertarian Party (United States)

| candidate = Tania Butler

| votes = 506

| percentage = 1.9

| change =

}}

{{Election box total no change

| votes = 26,242

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democrat State Senator David Watters had represented the New Hampshire's 4th State Senate District since 2012. He was reelected without opposition.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 4}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = David Watters (incumbent)

| votes = 15,299

| percentage = 100

| change =

}}

{{Election box total no change

| votes = 15,299

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Martha Hennessey had represented the New Hampshire's 5th State Senate District since 2016. She won reelection against Republican Patrick Lozito.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 5}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Martha Hennessey (incumbent)

| votes = 16,932

| percentage = 71.2

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Patrick Lozito

| votes = 6,862

| percentage = 28.8

| change =

}}

{{Election box total no change

| votes = 23,794

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator James Gray had represented the New Hampshire's 6th State Senate District since 2016. He won reelection against Democrat Anne Grassie.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 6}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = James Gray (incumbent)

| votes = 11,602

| percentage = 54.9

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Anne Grassie

| votes = 9,537

| percentage = 45.1

| change =

}}

{{Election box total no change

| votes = 21,139

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Harold F. French had represented the New Hampshire's 7th State Senate District since 2016. He won reelection against Democrat Mason Donovan.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 7}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Harold French (incumbent)

| votes = 11,616

| percentage = 53.4

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Mason Donovan

| votes = 10,141

| percentage = 46.6

| change =

}}

{{Election box total no change

| votes = 21,757

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Ruth Ward had represented the New Hampshire's 8th State Senate District since 2016. She won reelection against Democrat Jenn Alford-Teaster.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 8}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Ruth Ward (incumbent)

| votes = 12,859

| percentage = 51.3

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jenn Alford-Teaster

| votes = 12,212

| percentage = 48.7

| change =

}}

{{Election box total no change

| votes = 25,071

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Andy Sanborn had represented the New Hampshire's 9th State Senate District since 2010. He did not run for reelection in 2018. Instead, he ran unsuccessfully in the Republican primary for New Hampshire's 1st congressional district. The open seat was won by Democrat Jeanne Dietsch against Republican Dan Hynes.

{{Election box open primary begin no change| title= 2018 New Hampshire State Senate election, District 9}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jeanne Dietsch

| votes = 3,728

| percentage = 54.6

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Mark Fernald

| votes = 2,219

| percentage = 32.5

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Bruce Fox

| votes = 884

| percentage = 12.9

| change =

}}

{{Election box total no change

| votes = 6,831

| percentage = 100

| change =

}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Dan Hynes

| votes = 2,699

| percentage = 53.1

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Terry Wolf

| votes = 2,382

| percentage = 46.9

| change =

}}

{{Election box total no change

| votes = 5,081

| percentage = 100

| change =

}}

{{Election box open primary general election no change}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jeanne Dietsch

| votes = 14,037

| percentage = 52.4

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Dan Hynes

| votes = 12,776

| percentage = 47.6

| change =

}}

{{Election box total no change

| votes = 26,813

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Democratic Party (United States)

| loser = Republican Party (United States)

}}

{{Election box end}}

Incumbent Democratic state senator Jay Kahn had represented the New Hampshire's 10th State Senate District since 2016. He won reelection against Republican Dan LeClair and Libertarian Ian Freeman.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 10}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jay Kahn (incumbent)

| votes = 15,036

| percentage = 65.1

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Dan LeClair

| votes = 7,538

| percentage = 32.7

| change =

}}

{{Election box candidate with party link no change

| party = Libertarian Party (United States)

| candidate = Ian Freeman

| votes = 507

| percentage = 2.2

| change =

}}

{{Election box total no change

| votes = 23,081

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Gary L. Daniels had represented the New Hampshire's 11th State Senate District since 2014. He was defeated for reelection by Democratic state representative Shannon Chandley.

{{Election box open primary begin no change| title= 2018 New Hampshire State Senate election, District 11}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Shannon Chandley

| votes = 3,917

| percentage = 83.1

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Roger Tilton

| votes = 797

| percentage = 16.9

| change =

}}

{{Election box total no change

| votes = 4,714

| percentage = 100

| change =

}}

{{Election box open primary general election no change}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Shannon Chandley

| votes = 13,361

| percentage = 52.3

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Gary L. Daniels (incumbent)

| votes = 12,205

| percentage = 47.7

| change =

}}

{{Election box total no change

| votes = 25,566

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Democratic Party (United States)

| loser = Republican Party (United States)

}}

{{Election box end}}

Incumbent Republican state senator Kevin Avard had represented the New Hampshire's 12th State Senate District since 2014. He was defeated for reelection by former Democratic state representative Melanie Levesque.

{{Election box open primary begin no change| title= 2018 New Hampshire State Senate election, District 12}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Melanie Levesque

| votes = 3,727

| percentage = 79.4

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Tom Falter

| votes = 969

| percentage = 20.6

| change =

}}

{{Election box total no change

| votes = 4,696

| percentage = 100

| change =

}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Kevin Avard (incumbent)

| votes = 3,274

| percentage = 76.1

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Richard Dowd

| votes = 1,028

| percentage = 23.9

| change =

}}

{{Election box total no change

| votes = 4,302

| percentage = 100

| change =

}}

{{Election box open primary general election no change}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Melanie Levesque

| votes = 12,553

| percentage = 50.3

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Kevin Avard (incumbent)

| votes = 12,384

| percentage = 49.7

| change =

}}

{{Election box total no change

| votes = 24,937

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Democratic Party (United States)

| loser = Republican Party (United States)

}}

{{Election box end}}

Incumbent Democratic state senator Bette Lasky had represented the New Hampshire's 13th State Senate District since 2012. She did not run for reelection in 2018. The open seat was won by Democrat Cindy Rosenwald against Republican David Schoneman.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 13}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Cindy Rosenwald

| votes = 11,307

| percentage = 60.9

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = David Schoneman

| votes = 7,259

| percentage = 39.1

| change =

}}

{{Election box total no change

| votes = 18,566

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Sharon Carson had represented the New Hampshire's 14th State Senate District since 2008. She won reelection against Democrat Tammy Siekmann.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 14}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Sharon Carson (incumbent)

| votes = 12,823

| percentage = 57.6

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Tammy Siekmann

| votes = 9,424

| percentage = 42.4

| change =

}}

{{Election box total no change

| votes = 22,247

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Dan Feltes had represented the New Hampshire's 15th State Senate District since 2014. He won reelection against Republican Pamela Ean.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 15}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Dan Feltes (incumbent)

| votes = 15,929

| percentage = 66.2

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Pamela Ean

| votes = 8,119

| percentage = 33.8

| change =

}}

{{Election box total no change

| votes = 24,048

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Kevin Cavanaugh had represented the New Hampshire's 16th State Senate District since a 2017 special election. He won reelection in a rematch against former Republican state senator David Boutin.

{{Election box open primary begin no change| title= 2018 New Hampshire State Senate election, District 16}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = David Boutin

| votes = 2,961

| percentage = 60.0

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Bill Kuch

| votes = 1,978

| percentage = 40.0

| change =

}}

{{Election box total no change

| votes = 4,939

| percentage = 100

| change =

}}

{{Election box open primary general election no change}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Kevin Cavanaugh (incumbent)

| votes = 12,990

| percentage = 52.3

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = David Boutin

| votes = 11,853

| percentage = 47.7

| change =

}}

{{Election box total no change

| votes = 24,843

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator John Reagan had represented the New Hampshire's 17th State Senate District since 2012. He won reelection against Democrat Christoper Roundy.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 17}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = John Reagan (incumbent)

| votes = 13,172

| percentage = 55.5

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Christopher Roundy

| votes = 10,578

| percentage = 44.5

| change =

}}

{{Election box total no change

| votes = 23,750

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Donna Soucy had represented the New Hampshire's 18th State Senate District since 2012. She won reelection against Republican state representative George Lambert.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 18}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Donna Soucy (incumbent)

| votes = 10,276

| percentage = 56.0

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = George Lambert

| votes = 8,066

| percentage = 44.0

| change =

}}

{{Election box total no change

| votes = 18,342

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Regina Birdsell had represented the New Hampshire's 19th State Senate District since 2014. She won reelection against Democrat Kristina Durocher.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 19}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Regina Birdsell (incumbent)

| votes = 12,192

| percentage = 56.8

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Kristina Durocher

| votes = 9,269

| percentage = 43.2

| change =

}}

{{Election box total no change

| votes = 21,461

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Lou D'Allesandro had represented the New Hampshire's 20th State Senate District since 1998. D'Allesandro is the longest-serving member of the body. He won reelection against Republican Carla Gericke.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 20}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Lou D'Allesandro (incumbent)

| votes = 9,903

| percentage = 58.4

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Carla Gericke

| votes = 7,047

| percentage = 41.6

| change =

}}

{{Election box total no change

| votes = 16,950

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Democratic state senator Martha Fuller Clark had represented the New Hampshire's 21st State Senate District since 2012. She won reelection against Republican Peter Macdonald.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 21}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Martha Fuller Clark (incumbent)

| votes = 19,084

| percentage = 72.3

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Peter Macdonald

| votes = 7,324

| percentage = 27.7

| change =

}}

{{Election box total no change

| votes = 26,408

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Democratic Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Chuck Morse had represented the New Hampshire's 22nd State Senate District since 2010. He won reelection against Democrat Richard O'Shaughnessy and Libertarian Mitch Dyer.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 22}}

{{Election box winning candidate with party link no change

| party = Republican Party (United States)

| candidate = Chuck Morse (incumbent)

| votes = 13,571

| percentage = 58.6

| change =

}}

{{Election box candidate with party link no change

| party = Democratic Party (United States)

| candidate = Richard O'Shaughnessy

| votes = 9,155

| percentage = 39.5

| change =

}}

{{Election box candidate with party link no change

| party = Libertarian Party (United States)

| candidate = Mitch Dyer

| votes = 448

| percentage = 1.9

| change =

}}

{{Election box total no change

| votes = 23,174

| percentage = 100

| change =

}}

{{Election box hold with party link no change

| winner = Republican Party (United States)

| swing =

}}

{{Election box end}}

Incumbent Republican state senator Bill Gannon had represented the New Hampshire's 23rd State Senate District since 2014. He was defeated for reelection by Democrat Jon Morgan.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 23}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Jon Morgan

| votes = 12,911

| percentage = 50.2

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Bill Gannon (incumbent)

| votes = 12,806

| percentage = 49.8

| change =

}}

{{Election box total no change

| votes = 25,717

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Democratic Party (United States)

| loser = Republican Party (United States)

}}

{{Election box end}}

Incumbent Republican state senator Daniel Innis had represented the New Hampshire's 24th State Senate District since 2016. He was defeated for reelection by Democratic state representative Tom Sherman.

{{Election box begin no change| title= 2018 New Hampshire State Senate election, District 24}}

{{Election box winning candidate with party link no change

| party = Democratic Party (United States)

| candidate = Tom Sherman

| votes = 15,664

| percentage = 53.1

| change =

}}

{{Election box candidate with party link no change

| party = Republican Party (United States)

| candidate = Daniel Innis (incumbent)

| votes = 13,832

| percentage = 46.9

| change =

}}

{{Election box total no change

| votes = 29,496

| percentage = 100

| change =

}}

{{Election box gain with party link no change

| winner = Democratic Party (United States)

| loser = Republican Party (United States)

}}

{{Election box end}}

• List of New Hampshire General Courts

{{reflist}}

{{New Hampshire elections}}

{{2018 United States elections}}

Category:New Hampshire Senate elections

Senate

New Hampshire