2018 United States House of Representatives elections in Washington

The 2018 United States House of Representatives elections in Washington were held on November 6, 2018, to elect the 10 U.S. representatives from the state of Washington, one from each of the state's 10 congressional districts. The elections coincided with other elections to the House of Representatives, elections to the United States Senate and various state and local elections. All nine incumbents seeking re-election were re-elected, but the Democratic Party won the open-seat in the 8th District previously held by a Republican, improving from a 6–4 margin to a 7–3 margin.

2018 United States House of Representatives elections in Washington

← 2016 November 6, 2018 (2018-11-06) 2020 →
All ten Washington seats to the United States House of Representatives
Majority party Minority party   Party Democratic Republican Last election 6 4 Seats won 7 3 Seat change 1 1 Popular vote 1,888,593 1,048,712 Percentage 62.50% 34.70% Swing 7.23% 10.03%
District results County results Democratic   50–60%   60–70%   70–80%   80–90%   90–100% Republican   50–60%   60–70%   70–80%

Overview

Results of the 2018 United States House of Representatives elections in Washington by district:^[1]

District	Democratic		Republican		Others		Total		Result
	Votes	%	Votes	%	Votes	%	Votes	%
District 1	197,209	59.27%	135,534	40.73%	0	0.00%	332,743	100.0%	Democratic hold
District 2	210,187	71.29%	0	0.00%	84,646	28.71%	294,833	100.0%	Democratic hold
District 3	145,407	47.33%	161,819	52.67%	0	0.00%	307,226	100.0%	Republican hold
District 4	83,785	37.18%	141,551	62.82%	0	0.00%	225,336	100.0%	Republican hold
District 5	144,925	45.24%	175,422	54.76%	0	0.00%	320,347	100.0%	Republican hold
District 6	206,409	63.89%	116,677	36.11%	0	0.00%	323,086	100.0%	Democratic hold
District 7	329,800	83.56%	64,881	16.44%	0	0.00%	394,681	100.0%	Democratic hold
District 8	164,089	52.42%	148,968	47.58%	0	0.00%	313,057	100.0%	Democratic gain
District 9	240,567	100.00%	0	0.00%	0	0.00%	240,567	100.0%	Democratic hold
District 10	166,215	61.54%	103,860	38.46%	0	0.00%	270,075	100.0%	Democratic hold
Total	1,888,593	62.50%	1,048,712	34.70%	84,646	2.80%	3,021,951	100.0%

District 1

2018 Washington's 1st congressional district election

← 2016 2020 →

Nominee Suzan DelBene Jeffrey Beeler Party Democratic Republican Popular vote 197,209 135,534 Percentage 59.3% 40.7%

County results DelBene:      50–60%      60–70% Beeler:      50–60%

U.S. Representative before election Suzan DelBene Democratic Elected U.S. Representative Suzan DelBene Democratic

See also: Washington's 1st congressional district

The 1st congressional district is located along the Puget Sound from the Canada–US border to King County. The district had a PVI of D+6. The incumbent was Democrat Suzan DelBene, who had represented the district since 2012. She was re-elected with 55% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Suzan DelBene (incumbent)	106,107	59.3
	Republican	Jeffrey Beeler	45,830	25.6
	Republican	Scott Stafne	20,354	11.4
	No party preference	Adam Pilskog	5,007	2.8
	No party preference	Robert Mair	1,622	0.9
Total votes			178,920	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 2, 2018

Results

Washington's 1st congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Suzan DelBene (incumbent)	197,209	59.3
	Republican	Jeffrey Beeler	135,534	40.7
Total votes			332,743	100.0
	Democratic hold

District 2

2018 Washington's 2nd congressional district election

← 2016 2020 →

Nominee Rick Larsen Brian Luke Party Democratic Libertarian Popular vote 210,187 84,646 Percentage 71.3% 28.7%

County results Larsen:      60–70%      70–80%      80–90%

U.S. Representative before election Rick Larsen Democratic Elected U.S. Representative Rick Larsen Democratic

See also: Washington's 2nd congressional district

The 2nd congressional district includes all of Island and San Juan counties and neighboring areas on the mainland from Bellingham in the north to Lynnwood in the south. The district had a PVI of D+10. The incumbent was Democrat Rick Larsen, who had represented the district since 2001. He was re-elected with 64% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Rick Larsen (incumbent)	101,497	64.85
	Libertarian	Brian Luke	12,320	7.87
	Independent	Gary Franco	12,269	7.84
	Democratic	Collin Richard Carlson	12,058	7.70
	Moderate GOP	Uncle Mover	11,832	7.56
	Green	Stonewall "Stoney" Jackson Bird	6,525	4.17
Total votes			156,501	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 4, 2018

Washington's 2nd congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Rick Larsen (incumbent)	210,187	71.3
	Libertarian	Brian Luke	84,646	28.7
Total votes			294,833	100.0
	Democratic hold

District 3

2018 Washington's 3rd congressional district election

← 2016 2020 →

Nominee Jaime Herrera Beutler Carolyn Long Party Republican Democratic Popular vote 161,819 145,407 Percentage 52.7% 47.3%

County results Beutler:      50–60%      60–70% Long:      50–60%

U.S. Representative before election Jaime Herrera Beutler Republican Elected U.S. Representative Jaime Herrera Beutler Republican

See also: Washington's 3rd congressional district

The 3rd congressional district encompasses the southernmost portion of western and central Washington. It includes the counties of Lewis, Pacific, Wahkiakum, Cowlitz, Clark, Skamania, and Klickitat, and a small sliver of southern Thurston county. The district had a PVI of R+4. The incumbent was Republican Jaime Herrera Beutler, who had represented the district since 2011. She was re-elected with 62% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Republican	Jaime Herrera Beutler (incumbent)	68,961	42.1
	Democratic	Carolyn Long	57,798	35.3
	Democratic	David McDevitt	13,124	8.0
	Republican	Earl Bowerman	9,018	5.5
	Democratic	Dorothy Gasque	7,983	4.9
	Republican	Michael Cortney	5,528	3.4
	Democratic	Martin Hash	1,498	0.9
Total votes			163,910	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Lean R	November 5, 2018
Inside Elections[3]	Likely R	November 5, 2018
Sabato's Crystal Ball[4]	Lean R	November 5, 2018
RCP[5]	Lean R	November 5, 2018
Daily Kos[6]	Lean R	November 5, 2018
538[7]	Lean R	November 7, 2018

Polling

Poll source	Date(s) administered	Sample size	Margin of error	Jaime Herrera Beutler (R)	Carolyn Long (D)	Undecided
NYT Upshot/Siena College[10]	October 14–19, 2018	497	± 4.6%	48%	41%	12%
Lake Research Partners (D-Long)[11]	October 9–11, 2018	500	± 4.9%	43%	45%	–
Lake Research Partners (D-Long)[12]	June 14–18, 2018	500	± 4.4%	42%	37%	20%
Lake Research Partners (D-Long)[13]	March 8–12, 2018	400	± 4.9%	49%	29%	21%

Endorsements

Carolyn Long (D)

Federal officials

• Barack Obama, former president of the United States (2009–2017)^[14]

Results

Washington's 3rd congressional district, 2018

Party		Candidate	Votes	%
	Republican	Jaime Herrera Beutler (incumbent)	161,819	52.7
	Democratic	Carolyn Long	145,407	47.3
Total votes			307,226	100.0
	Republican hold

District 4

2018 Washington's 4th congressional district election

← 2016 2020 →

Nominee Dan Newhouse Christine Brown Party Republican Democratic Popular vote 141,551 83,785 Percentage 62.8% 37.2%

County results Newhouse:      50–60%      60–70%      70–80%

U.S. Representative before election Dan Newhouse Republican Elected U.S. Representative Dan Newhouse Republican

See also: Washington's 4th congressional district

The 4th congressional district is located in central Washington, covering the counties of, Douglas, Okanogan, Grant, Yakima, Franklin, Benton, and Adams. The district is dominated by the Yakima and Tri-Cities areas. The district had a PVI of R+13. The incumbent was Republican Dan Newhouse, who had represented the district since 2015. He was re-elected with 58% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Republican	Dan Newhouse (incumbent)	77,203	63.2
	Democratic	Christine Brown	44,868	36.8
Total votes			122,071	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe R	November 5, 2018
Inside Elections[3]	Safe R	November 5, 2018
Sabato's Crystal Ball[4]	Safe R	November 5, 2018
RCP[5]	Safe R	November 5, 2018
Daily Kos[6]	Safe R	November 5, 2018
538[7]	Safe R	November 7, 2018
CNN[8]	Safe R	October 31, 2018
Politico[9]	Safe R	November 4, 2018

Results

Washington's 4th congressional district, 2018

Party		Candidate	Votes	%
	Republican	Dan Newhouse (incumbent)	141,551	62.8
	Democratic	Christine Brown	83,785	37.2
Total votes			225,336	100.0
	Republican hold

District 5

2018 Washington's 5th congressional district election

← 2016 2020 →

Nominee Cathy McMorris Rodgers Lisa Brown Party Republican Democratic Popular vote 175,422 144,925 Percentage 54.8% 45.2%

County results Rodgers:      50–60%      60–70%      70–80% Brown:      50–60%

U.S. Representative before election Cathy McMorris Rodgers Republican Elected U.S. Representative Cathy McMorris Rodgers Republican

See also: Washington's 5th congressional district

The 5th congressional district is located in Eastern Washington and includes the counties of Ferry, Stevens, Pend Oreille, Lincoln, Spokane, Whitman, Walla Walla, Columbia, Garfield, and Asotin. It is centered on Spokane, the state's second largest city. The district had a PVI of R+8. The incumbent was Republican Cathy McMorris Rodgers, who had represented the district since 2005. She was re-elected with 60% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Republican	Cathy McMorris Rodgers (incumbent)	99,689	49.3
	Democratic	Lisa Brown	91,738	45.4
	Trump Populist	Dave Saulibio	4,845	2.4
	Republican	Jered Gavin Bonneau	4,453	2.2
	Republican	Kari Olavi Ilonummi	1,507	0.7
Total votes			202,232	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Lean R	November 5, 2018
Inside Elections[3]	Likely R	November 5, 2018
Sabato's Crystal Ball[4]	Lean R	November 5, 2018
RCP[5]	Lean R	November 5, 2018
Daily Kos[6]	Lean R	November 5, 2018
538[7]	Likely R	November 7, 2018

Debate

2018 Washington's 5th congressional district debate

No.	Date	Host	Moderator	Link	Republican	Democratic
Key:  P  Participant   A  Absent   N  Not invited   I  Invited  W  Withdrawn
					Cathy McMorris Rodgers	Lisa Brown
1	Oct. 24, 2018	Northwest Public Broadcasting Walla Walla Valley Chamber of Commerce	Bertha Clayton	[15]	P	P

Endorsements

Cathy McMorris Rodgers (R)

U.S. executive branch officials

• Donald Trump, 45th president of the United States^[16]

Lisa Brown (D)

U.S. executive branch officials

• Barack Obama, former president of the United States (2009–2017)^[14]

Polling

Poll source	Date(s) administered	Sample size	Margin of error	Cathy McMorris Rodgers (R)	Lisa Brown (D)	Other	Undecided
FM3 Research (D-Brown)[17]	September 16–20, 2018	521	± 4.3%	49%	46%	—	5%
Public Policy Polling (D)[18]	April 16–17, 2018	689	± 3.7%	48%	45%	—	7%
Elway Research[19]	April 4–7, 2018	403	± 5.0%	44%	38%	3%	16%
DCCC (D)[20]	February 3, 2018	414	± 4.8%	47%	43%	—	—

Results

Washington's 5th congressional district, 2018

Party		Candidate	Votes	%
	Republican	Cathy McMorris Rodgers (incumbent)	175,422	54.8
	Democratic	Lisa Brown	144,925	45.2
Total votes			320,347	100.0
	Republican hold

District 6

2018 Washington's 6th congressional district election

← 2016 2020 →

Nominee Derek Kilmer Douglas Dightman Party Democratic Republican Popular vote 206,409 116,677 Percentage 63.9% 36.1%

County results Kilmer:      50–60%      60–70%      70–80%

U.S. Representative before election Derek Kilmer Democratic Elected U.S. Representative Derek Kilmer Democratic

See also: Washington's 6th congressional district

The 6th congressional district includes the Olympic Peninsula, most of the Kitsap Peninsula, and most of the city of Tacoma. The district had a PVI of D+6. The incumbent was Democrat Derek Kilmer, who had represented the district since 2013. He was re-elected with 62% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Derek Kilmer (incumbent)	117,848	63.5
	Republican	Douglas Dightman	60,651	32.7
	Progressive	Tyler Myles Vega	7,080	3.8
Total votes			185,579	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 4, 2018

Results

Washington's 6th congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Derek Kilmer (incumbent)	206,409	63.9
	Republican	Douglas Dightman	116,677	36.1
Total votes			323,086	100.0
	Democratic hold

District 7

2018 Washington's 7th congressional district election

← 2016 2020 →

Nominee Pramila Jayapal Craig Keller Party Democratic Republican Popular vote 329,800 64,881 Percentage 83.6% 16.4%

County results Jayapal:      60–70%      80–90%

U.S. Representative before election Pramila Jayapal Democratic Elected U.S. Representative Pramila Jayapal Democratic

See also: Washington's 7th congressional district

The 7th congressional district includes most of Seattle, all of Vashon Island, Edmonds, Shoreline, Kenmore, and parts of Burien and Normandy Park. The district had a PVI of D+33. The incumbent was Democrat Pramila Jayapal, who had represented the district since 2017. She was elected with 56% of the vote in 2016, to replace retiring Democratic representative Jim McDermott.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Pramila Jayapal (incumbent)	189,175	82.7
	Republican	Craig Keller	39,657	17.3
Total votes			228,832	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 4, 2018

Results

Washington's 7th congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Pramila Jayapal (incumbent)	329,800	83.6
	Republican	Craig Keller	64,881	16.4
Total votes			394,681	100.0
	Democratic hold

District 8

2018 Washington's 8th congressional district election

← 2016 2020 →

Nominee Kim Schrier Dino Rossi Party Democratic Republican Popular vote 164,089 148,968 Percentage 52.4% 47.6%

County results Schrier:      50–60% Rossi:      50–60%

U.S. Representative before election Dave Reichert Republican Elected U.S. Representative Kim Schrier Democratic

See also: Washington's 8th congressional district

The 8th congressional district includes the eastern portions of King and Pierce counties and crosses the Cascade mountains to include Chelan and Kittitas counties. The population centers on the west side of the mountains include the exurban communities of Sammamish, Issaquah, and Auburn. On the east side, the 8th's population centers are rural communities Wenatchee, Leavenworth, and Ellensburg. The district had a PVI of EVEN.

Dave Reichert's retirement made this the only open seat in Washington in 2018, as well as the only seat to change party hands.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Republican	Dino Rossi	73,288	43.1
	Democratic	Kim Schrier	31,837	18.7
	Democratic	Jason Rittereiser	30,708	18.1
	Democratic	Shannon Hader	21,317	12.5
	Republican	Jack Hughes-Hageman	4,270	2.5
	Republican	Gordon Allen Pross	2,081	1.2
	Democratic	Tom Cramer	1,468	0.9
	Independent Centrist	Bill Grassie	1,163	0.7
	Libertarian	Richard Travis Reyes	1,154	0.7
	Independent	Keith Arnold	1,090	0.6
	Neither Major Party	Patrick Dillon	898	0.5
	No party preference	Todd Mahaffey	673	0.4
Total votes			169,947	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Lean D (flip)	November 5, 2018
Inside Elections[3]	Tossup	November 5, 2018
Sabato's Crystal Ball[4]	Lean D (flip)	November 5, 2018
RCP[5]	Tossup	November 5, 2018
Daily Kos[6]	Tossup	November 5, 2018
538[7]	Lean D (flip)	November 7, 2018

Endorsements

Dino Rossi (R)

Organizations

• Club for Growth PAC^[21]

Newspapers

• The Seattle Times^[22]

Kim Schrier (D)

U.S. executive branch officials

• Barack Obama, former president of the United States (2009–2017)^[14]

Debate

2018 Washington's 8th congressional district debate

No.	Date	Host	Moderator	Link	Republican	Democratic
Key:  P  Participant   A  Absent   N  Not invited   I  Invited  W  Withdrawn
					Dino Rossi	Kim Schrier
1	Oct. 17, 2018	Associated Students of Central Washington University Central Washington University Ellensburg Daily Record Kittitas County Chamber of Commerce Cle Elum-Roslyn, Easton, Ellensburg, Kittitas & Thorp school districts		[23]	P	P

Polling

Poll source	Date(s) administered	Sample size	Margin of error	Dino Rossi (R)	Kim Schrier (D)	Undecided
NYT Upshot/Siena College[24]	October 30 – November 4, 2018	477	± 4.8%	45%	48%	8%
Elway Research[25]	October 4–9, 2018	400	± 5.0%	49%	39%	12%
NYT Upshot/Siena College[26]	September 24–26, 2018	505	± 4.6%	45%	46%	9%
GBA Strategies (D)[27]	April 18–22, 2018	300	± 5.7%	51%	45%	–

Poll source	Date(s) administered	Sample size	Margin of error	Dino Rossi (R)	Generic Democrat	Other	Undecided
DCCC (D)[20]	March 23, 2018	–	–	46%	44%	–	–
Public Policy Polling (D)[28]	February 12–13, 2018	613	± 4.0%	43%	44%	–	13%
Public Policy Polling (D)[29]	October 6–8, 2017	753	± 3.6%	42%	43%	–	15%

Poll source	Date(s) administered	Sample size	Margin of error	Dino Rossi (R)	Jason Rittereiser (D)	Undecided
GBA Strategies (D)[27]	April 18–22, 2018	900	± 5.7%	52%	43%	–

Poll source	Date(s) administered	Sample size	Margin of error	Dino Rossi (R)	Shannon Hader (D)	Undecided
GBA Strategies (D)[27]	April 18–22, 2018	900	± 5.7%	51%	45%	–

Hypothetical polling

Dino Rossi vs. generic Democrat

Dino Rossi vs. Jason Rittereiser

Dino Rossi vs. Shannon Hader

Results

Washington's 8th congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Kim Schrier	164,089	52.4
	Republican	Dino Rossi	148,968	47.6
Total votes			313,057	100.0
	Democratic gain from Republican

District 9

2018 Washington's 9th congressional district election

← 2016 2020 →

Nominee Adam Smith Sarah Smith Party Democratic Democratic Popular vote 163,345 77,222 Percentage 67.9% 32.1%

County results A. Smith:      60–70%      70–80%

U.S. Representative before election Adam Smith Democratic Elected U.S. Representative Adam Smith Democratic

See also: Washington's 9th congressional district

The 9th congressional district encompasses a long, somewhat narrow area in western Washington through the densely populated central Puget Sound region, from Tacoma in the south to Bellevue in the north. The district had a PVI of D+21. The incumbent was Democrat Adam Smith, who had represented the district since 1997. He was re-elected with 73% of the vote in 2016. The 9th was the only district in Washington to have Democrats win both spots in the blanket primary, with 48% of the vote going to the Adam Smith, the incumbent, 27% going to Sarah Smith, a progressive challenger, and 25% going to Doug Blaser, the sole Republican candidate. Incumbent Adam Smith won the general election soundly, receiving 68% of the vote.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Adam Smith (incumbent)	71,035	48.4
	Democratic	Sarah Smith	39,409	26.9
	Republican	Doug Basler	36,254	24.7
Total votes			146,698	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 4, 2018

Results

Washington's 9th congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Adam Smith (incumbent)	163,345	67.9
	Democratic	Sarah Smith	77,222	32.1
Total votes			240,567	100.0
	Democratic hold

District 10

2018 Washington's 10th congressional district election

← 2016 2020 →

Nominee Denny Heck Joseph Brumbles Party Democratic Republican Popular vote 166,215 103,860 Percentage 61.5% 38.5%

County results Heck:      50–60%     60–70%

U.S. Representative before election Denny Heck Democratic Elected U.S. Representative Denny Heck Democratic

See also: Washington's 10th congressional district

The 10th congressional district encompasses the state capital of Olympia and surrounding areas. The district had a PVI of D+5. The incumbent was Democrat Denny Heck, who had represented the district since 2013. He was re-elected with 59% of the vote in 2016.

Primary election

Results

Nonpartisan blanket primary results

Party		Candidate	Votes	%
	Democratic	Denny Heck (incumbent)	82,522	58.2
	Republican	Joseph Brumbles	45,260	31.9
	Independent Progressive	Tamborine Borrelli	7,991	5.6
	Independent Centrist	Nancy Dailey Slotnick	6,125	4.3
Total votes			141,898	100.0

General election

Predictions

Source	Ranking	As of
The Cook Political Report[2]	Safe D	November 5, 2018
Inside Elections[3]	Safe D	November 5, 2018
Sabato's Crystal Ball[4]	Safe D	November 5, 2018
RCP[5]	Safe D	November 5, 2018
Daily Kos[6]	Safe D	November 5, 2018
538[7]	Safe D	November 7, 2018
CNN[8]	Safe D	October 31, 2018
Politico[9]	Safe D	November 4, 2018

Results

Washington's 10th congressional district, 2018

Party		Candidate	Votes	%
	Democratic	Denny Heck (incumbent)	166,215	61.5
	Republican	Joseph Brumbles	103,860	38.5
Total votes			270,075	100.0
	Democratic hold