# 2018 United States House of Representatives election in Delaware

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The 2018 United States House of Representatives election in Delaware was held on November 6, 2018, to elect the U.S. representative from Delaware's at-large congressional district, who will represent the state of Delaware in the 116th United States Congress. The election coincided with the election of a U.S. Senator from Delaware and other federal and state offices. Democratic Congresswoman Lisa Blunt Rochester, the incumbent, won re-election.

## Democratic primary

Lisa Blunt Rochester ran unopposed in the primary and automatically became the Democratic nominee.

### Candidates
#### Nominee

* Lisa Blunt Rochester, incumbent U.S. Representative

#### Withdrew

* Rose Izzo, Republican candidate for the seat in 2016, 2014, and 2012 (ran for State House in District 7)

#### Declined

* Kerri Evelyn Harris, Dover activist and U.S. Air Force veteran (ran for U.S. Senate)

### Endorsements

Organizations
* Congressional Black Caucus PAC
* Delaware Women Legislators
* Democratic Party
* Human Rights Campaign
* Planned Parenthood
* Stonewall Democrats

## Republican primary
### Candidates
#### Nominee

* Scott Walker, Republican candidate for the seat in 2016

#### Eliminated in primary

* Lee Murphy, retired railroad worker and actor (refused to concede)

#### Write-in

* Marvin Davis, far-rightist
* Lee Murphy, retired railroad worker and actor (not filed)
* Andrew Webb, community activist and student

### Endorsements

Political candidates
* Gene Truono, Republican candidate for United States Senate

#### Primary results

Republican primary results, Delaware 2018 :
| Party | Party | Candidate | Votes | % |
| | Republican | Scott Walker | 19,573 | 53.00% |
| | Republican | Lee Murphy | 17,359 | 47.00% |
| Total votes | Total votes | Total votes | 36,932 | 100% |

### Controversy

Shortly after the final results for the Republican primary, controversy almost immediately emerged about Scott Walker’s victory, as Lee Murphy had been seen by many as the favorite to win. Murphy refused to concede and took to Facebook, saying, “Friends, thanks for all your support- something stinks here and I will not be conceding anytime soon. Need to investigate big time. A Dem wins a Republican primary?” Murphy also called for an investigation into the results. Walker responded by saying that God had led his campaign to victory. Student and community activist Andrew Webb declared his Republican write-in candidacy on September 17, 2018, hoping to gain support from dissatisfied Republicans. He announced a platform of more moderate/traditional conservative ideas.

## Libertarian Party
### Candidates
#### Endorsed by Sussex County Chapter

* Andrew Webb, community activist and student (write-in)

## Independent Party of Delaware
### Candidates
#### Write-in

* Andrew Webb, community activist and student

## Independents
### Candidates
#### Declared

* Paul Johnston, veteran (write-in)

#### Withdrew

* Christopher Mockerman, activist (running for State House in District 17)

## General election
### Endorsements

U.S. Senators
* Tom Carper, U.S. Senator from Delaware
* Chris Coons, U.S. Senator from Delaware
Governors
* John Carney, 74th Governor of Delaware
Lt. Governors
* Bethany Hall-Long, 26th Lt. Governor of Delaware
Political candidates
* Don Allan, Democratic nominee for Delaware's 36th Representative district
* Colleen Davis, Democratic nominee for State Treasurer
* Dee Durham, Democratic nominee for New Castle County's 2nd council district
* Krista Griffith, Democratic nominee for Delaware's 12th Representative district
* Kathy Jennings, Democratic nominee for Delaware state Attorney General
* Elizabeth "Tizzy" Lockman, Delaware State Senator-elect for 3rd district
* Laura Sturgeon, Democratic nominee for Delaware's 4th Senate district
Individuals
* Coby Owens, social justice activist, CEO of Youth Caucus of America, and 2016 delegate for Bernie Sanders
Organizations
* Congressional Black Caucus PAC
* Delaware Division of Public Health
* Delaware Women Legislators
* Democratic Party
* Human Rights Campaign
* Mary Ann’s List
* Moms Demand Action for Gun Sense in America
* Planned Parenthood
* Sierra Club
* Stonewall Democrats
Individuals
* Lil B, rapper
County Councilpersons
* Rob Arlett, Sussex County Councilman and Republican nominee for U.S. Senate in Delaware
Individuals
* James Brittingham, Libertarian Party of Delaware Sussex County chairman
Organizations
* Independent Party of Delaware
* Libertarian Party of Delaware Sussex County Chapter
Declined to endorse Scott Walker
* Rob Arlett, Sussex County Councilman and Republican nominee for U.S. Senate in Delaware (endorsed Andrew Webb)
* Peter Kopf, former New Castle County Republican chairman
* Lee Murphy, former candidate
* Republican Party
* Andrew Webb, community activist and student (running as write-in)

### Debates

* Full video of debate, University of Delaware October 17, 2018
* Full audio of debate, Delaware Public Media October 17, 2018

### Predictions

| Source | Ranking | As of |
| FiveThirtyEight | Solid D | September 2018 |
| 270towin | Safe D | October 2018 |

### Polling

| Poll source | Date(s) administered | Sample size | Margin of error | Lisa Blunt Rochester (D) | Scott Walker (R) | Undecided |
| University of Delaware | September 11–17, 2018 | 728 LV | – | 58% | 28% | 15% |
| University of Delaware | September 11–17, 2018 | 908 RV | ± 3.7% | 54% | 26% | 20% |
| Gravis Marketing | July 24–29, 2018 | 884 | ± 3.3% | 46% | 38% | 16% |
with Lisa Blunt Rochester and Lee Murphy
| Poll source | Date(s) administered | Sample size | Margin of error | Lisa Blunt Rochester (D) | Lee Murphy (R) | Undecided |
| Gravis Marketing | July 24–29, 2018 | 884 | ± 3.3% | 46% | 39% | 16% |

### Results

Delaware's at-large congressional district, 2018 :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Lisa Blunt Rochester (incumbent) | 227,353 | 64.26% | +8.74% |
| | Republican | Scott Walker | 125,384 | 35.44% | −5.30% |
| | Write-in | Write-in | 1,077 | 0.3% | |
| Total votes | Total votes | Total votes | 353,814 | 100% | N/A |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

#### Counties that flipped from Republican to Democratic

* Kent (largest city: Dover)