CA-10

Name: CA-10 Election 2018
Start: 2018-11-06
Location: California

California — U.S. House District 10

Nov 6, 2018California2 candidates

Challengers

Josh Harder

(D)Won

Democratic incumbent representing California's 9th district; former business executive first elected to Congress in 2018.

Vote share52.3%

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Jeff Denham

(R)Lost

Republican former U.S. Representative for California's 10th and 19th districts, Air Force veteran, and businessman.

Vote share47.7%

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Campaign finance data not yet available for this race.

Recent Coverage

Your guide to California's 9th Congressional District race

The Sacramento BeeSep 19, 2026

informational

Rep. Josh Harder bill calling for Golden Mussel eradication, control advances in Congress

KGET 17Sep 16, 2026

positive

April Updates

theabundantfuture.substack.comApr 9, 2026

positive

Election History

2024

2022

2020

2018

2026

Mark DeSaulnier(D)N/A

Jeffrey Frese(R)N/A

2024

Mark DeSaulnier(D)66.5%

Katherine Piccinini(R)33.5%

2022

Mark DeSaulnier(D)78.9%

Michael Ernest Kerr(G)21.1%

2020

Josh Harder(D)55.2%

Ted Howze(R)44.8%

2018

Josh Harder(D)52.3%

Jeff Denham(R)47.7%

Campaign finance data sourced from FEC filings. Election results from MIT Election Lab. ChamberLight is not an official government source.

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