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2018 United States elections

The 2018 United States elections were held on Tuesday, November 6, 2018.[c] These midterm elections occurred during Incumbent Republican President Donald Trump's term. Although the Republican Party increased its majority in the Senate, unified Republican control of Congress and the White House was brought to an end when the Democratic Party won control of the House of Representatives in what was widely characterized as a "blue wave" election as Democrats also gained governorships and other state offices, and state legislative chambers as well.

Election day

November 6

Donald Trump (Republican)

Republican hold

35 of 100 seats
(33 seats of Class I + 2 special elections)

Republican +2

Democratic gain

All 435 voting seats
+5 of 6 non-voting seats[a]

Democratic +8.6%

Democratic +41

39 (36 states, three territories)

Democratic +7[b]

Democrats made a net gain of 41 seats in the United States House of Representatives,[d] gaining a majority in the chamber and thereby ending the federal trifecta that the Republican Party had established in the 2016 elections. The Republican Party retained control of the United States Senate, making a net gain of two seats and defeating four Democratic incumbents in states that had voted for Trump in 2016. As a result of the 2018 elections, the 116th United States Congress became the first Congress since the 99th United States Congress (elected in 1984) in which the Democrats controlled the U.S. House of Representatives and the Republicans controlled the U.S. Senate. In state-level elections, Democrats picked up a net of seven governorships and several state legislative seats.


This was the first time since 1970 that one party gained Senate seats while losing House seats, which also occurred in 1914, 1962, and 2022.[1] In the state elections, Democrats gained seven state governorships, control of approximately 350 state legislative seats, and control of six state legislative chambers.


The elections marked the highest voter turnout seen in midterm elections since 1914, at 49.4%. The elections saw several electoral firsts for women, racial minorities, and LGBT candidates, including the election of the first openly gay governor and the first openly bisexual U.S. senator. In various referendums, numerous states voted to expand Medicaid coverage, require voter identification, establish independent redistricting commissions, legalize marijuana, repeal felony disenfranchisement laws and enact other proposals. During the campaign, Democrats focused on health care, frequently attacking Republicans for supporting repeal of provisions of the Affordable Care Act (also known as Obamacare), including protections for individuals with preexisting conditions. They also focused on tying many Republican incumbents and candidates to President Trump. Republican messaging focused on immigration and the Tax Cuts and Jobs Act of 2017. There were allegations of attempted Russian interference in these elections as well as controversies regarding potential voter suppression.


Research has linked Republican losses in the elections to the party's unsuccessful and unpopular efforts to repeal the Affordable Care Act, as well as the China–United States trade war.

Issues, advertisements, and campaigning[edit]

In May 2018, President Trump began to emphasize his effort to overcome the traditional strength of the non-presidential party in midterm elections, with the "top priority for the White House [being to hold] the Republican majority in the Senate". He was already well into his own 2020 reelection campaign, having launched it on his inauguration day in January 2017.[2] By early August, the president's midterm efforts had included rallies in Ohio, Pennsylvania, Florida, Montana and elsewhere "reprising the style and rhetoric of his 2016 campaign". He focused his message on the economy, his proposed border wall, the "trade war" with China, criticism of the media, and his proposal to create the space force, a new branch of the military devoted to operations in space.[3] In late August 2018, the Huffington Post reported that Trump and his administration had been engaging in campaign activity on taxpayer-funded trips. According to the report, a top White House staffer identified 35 events by Cabinet and senior staff members "with or affecting House districts in August already". White House Deputy Press Secretary Lindsay Walters called the report "misleading".[4]


The 2018 elections featured a wider range and larger number of campaign advertisements than past midterm elections.[5] Almost a third of Republican ads focused on taxes, especially on the recently enacted Tax Cuts and Jobs Act of 2017.[6] By mid-October 2018, at a cost of some $124 million, more than 280,000 television advertisements related to immigration had been aired in House, Senate and gubernatorial races, representing a five-fold increase compared to the 2014 cycle.[7] In October 2018, The New York Times and The Washington Post characterized Republicans' 2018 campaign messaging as being chiefly focused on fear-mongering about immigration and race.[8][9] According to The Washington Post, President Trump "settled on a strategy of fear—laced with falsehoods and racially tinged rhetoric—to help lift his party to victory in the coming midterms, part of a broader effort to energize Republican voters".[9] In November 2018, Facebook, NBC, and Fox News withdrew a controversial pro-Trump advertisement that focused on a migrant caravan; Facebook noted that the ad violated Facebook's rules concerning "sensational content".[10]


Nearly half of all advertisements by Democrats focused on health care, in particular on defending the Patient Protection and Affordable Care Act (also known as Obamacare or the Affordable Care Act) and keeping in place protections for individuals with preexisting conditions.[6] A number of Republican candidates claimed to support provisions of the Affordable Care Act, such as protections for preexisting conditions, even though they supported efforts that either weakened or eliminated those provisions.[11][12][13] In the final weeks of the campaign, Democrats indicated their desire to keep the focus of the campaign on Republican efforts to repeal provisions of Obamacare through the proposed American Health Care Act of 2017.[14] A Gallup poll conducted days before the election found that voters considered healthcare and the economy to be the top issues among registered voters, though many voters also considered immigration to be a top priority.[15]

in Pennsylvania's 18th congressional district following the resignation of Tim Murphy (R), held on March 13, 2018; won by Conor Lamb (D).

Special election

in Arizona's 8th congressional district following the resignation of Trent Franks (R), held on April 24, 2018; won by Debbie Lesko (R).

Special election

in Texas's 27th congressional district following the resignation of Blake Farenthold (R), held on June 30, 2018; won by Michael Cloud (R).

Special election

in Ohio's 12th congressional district following the resignation of Pat Tiberi (R), held on August 7, 2018; won by Troy Balderson (R).

Special election

Local elections[edit]

Mayoral elections[edit]

Incumbent candidates won in mayoral elections held in major cities, including Anchorage, Alaska (Ethan Berkowitz); Austin, Texas (Steve Adler); Oakland, California (Libby Schaaf); Providence, Rhode Island (Jorge Elorza); and Washington, D.C. (Muriel Bowser).[69] The District of Columbia and Oakland each re-elected mayors for the first time since 2002.[69][70]


Incumbent mayors were also re-elected in Chesapeake, Virginia (Richard West); Chula Vista, California (Mary Salas); Irvine, California (Donald P. Wagner); Long Beach, California (Robert Garcia); Louisville, Kentucky (Greg Fischer); Lubbock, Texas (Dan Pope); Newark, New Jersey (Ras J. Baraka); Reno, Nevada (Hillary Schieve); San Jose, California (Sam Liccardo); and Santa Ana, California (Miguel Pulido). In San Bernardino, California, John Valdivia defeated incumbent Mayor R. Carey Davis. Open seats were won in Anaheim, California (Harry Sidhu); Chandler, Arizona (Kevin Hartke); Garland, Texas (Lori Barnett-Dodson); and Trenton, New Jersey (Reed Gusciora).[71][72] In Oklahoma City, David Holt, a member of the Osage Nation, was the first Native American to be elected mayor.[73] In Fort Smith, Arkansas, George McGill won an open seat and became the city's first black mayor.[74]


Mayoral elections in November 2018 in Phoenix, Arizona, and Corpus Christi and Laredo, Texas, as well as Little Rock, Arkansas, resulted in no single candidate carrying a majority of the vote.[69][71] Frank Scott Jr. won the December 2018 runoff to become Little Rock's first elected African-American mayor.[75] In Texas, incumbents won their runoff races in Laredo (Pete Saenz)[76] and Corpus Christi (Joe McComb).[77] The Phoenix mayoral runoff was held in March 2019.[71][69]


Although most local offices are nonpartisan, when looking at party identification of the officeholders, registered Republicans gained two mayorships during 2018. Linda Gorton won a seat previously held by a Democrat in Lexington, Kentucky and Bob Dyer won a seat previously held by an independent in Virginia Beach, Virginia. Following the November elections, registered Democrats hold 60 mayorships (−1) in the 100 largest cities in the United States, registered Republicans hold 28 (+2) and independents hold 7 (−1).[78]

Tribal elections[edit]

Several notable Native American tribes held elections for top tribal leadership positions during 2018.


Osage Nation Principal Chief Geoffrey Standing Bear,[87] San Carlos Apache Nation Tribal Chairman Terry Rambler,[88] and Lumbee Tribe of North Carolina Tribal Chairman Harvey Godwin Jr.[89] were all re-elected to second terms. Penobscot Nation Tribal Chief Kirk Francis was re-elected to a fifth term.[90] Long-time Chairman of the Quapaw Tribe John Berrey was reelected, and voters formally changed the tribe's name to the Quapaw Nation.[91]


Navajo Nation President Jonathan Nez,[92] Oglala Sioux Tribe President Julian Bear Runner,[93] Rosebud Sioux Tribe President Rodney Bordeaux,[94] Tunica-BiloxiTribe Chairman Marshall Pierite,[95] Yurok Tribal Chief Joe James,[96] and United Houma Nation Principal Chief August "Cocoa" Creppel[97] all won open seats. White Mountain Apache Tribal Chairwoman Gwendena Lee-Gatewood won an open seat to become the first woman elected to lead the tribe.[98]


Ousted Northern Cheyenne Tribal Council President L. Jace Killsback was re-elected by two votes in a special election on January 2 after being removed from office in October 2017.[99] He resigned from the position in October 2018 due to conflicts with the Tribal Council, triggering a new special election for January 2019.[100]

was re-elected chair of the Iowa Democratic Party.

Troy Price

was re-elected chair of the Illinois Democratic Party.

Mike Madigan

Ballot controversies and recounts[edit]

Arizona[edit]

In Arizona, a court settlement was reached on November 9 between Democrats and Republicans after Republicans filed a lawsuit on November 7 to attempt to prevent Maricopa and Pima counties from using procedures that permit mail-in ballot fixes to occur beyond election day. The settlement gave all counties until November 14 to address problems with the ballots for the state's Senate race.[117] Ultimately, Republican candidate Martha McSally conceded the race.[118]

Florida[edit]

Recounts of ballots were ordered for Florida's Senate, governor, and agriculture commissioner races on November 10 after the tallies from 67 counties were deemed too close to call.[119] Due to the recount ordered, Democratic candidate Andrew Gillum withdrew his earlier concession to Republican candidate Ron DeSantis.[120] In total eight lawsuits were filed in the days after November 7.[121] After recounts were held for each race, the Democratic candidates for Senate and governor and the Republican candidate for agriculture commissioner all conceded between November 17 and November 19.[122] On November 19, the Supervisor of Elections for Broward County, Florida, Brenda Snipes, announced her resignation from her post, effective January 4, 2019, after national scrutiny led to widespread condemnation by Republicans.[123]

Georgia[edit]

In Georgia, a judge placed a temporary restraining order on Doughterty County results on November 9 as, among other things, some of the 14,000 absentee ballots were allegedly re-routed through Tallahassee due to Hurricane Michael, resulting in a delay to the county election office certifying its results.[124][125] On November 17, Georgia Secretary of State Robyn Crittenden certified the election result, a day after the restraining order expired.[125]


Before the election there were allegations of voter suppression raised in Georgia, as well as outcry that candidate Brian Kemp did not resign from his position as secretary of state, which oversaw the election.[126] On November 12, Democratic gubernatorial candidate Stacey Abrams filed a lawsuit to prevent two counties from rejecting absentee ballots with minor mistakes, such as if a voter moved and had not changed their address.[127] During her concession speech on November 16, Abrams announced her plans to file a federal lawsuit challenging the way the state elections were run. She alleged that Kemp used his position of secretary of state and its office to aggressively purge the rolls of inactive voters, enforce an "exact match" policy for checking voters' identities that left many voters in limbo and other measures to tip the election in his favor.[128]

, Ncsl.org, Washington, D.C.: National Conference of State Legislatures, State legislation related to the administration of elections introduced in 2011 through...2020

"State Elections Legislation Database"