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Federal race · California

United States Representative · District 18

California. Election Day was Nov. 3, 2026. Two candidates are on the official list.

Who is running

Certified by California Secretary of State, as of Oct 15, 2026. Official list

Names and parties are copied exactly from the official list. Blue marks Democrats, red marks Republicans, and gray marks every other party or none; each is also labeled in words.

Official vote count

Unofficial results until certified. These are counts as published by California Secretary of State. Counts change as ballots are counted. Power & Politics does not call races or project winners.

U.S. House of Representatives District 18 - Districtwide Results, as listed by the official source
Candidate or choicePartyVotesShare of votes counted
Zoe LofgrenDem72,45171.7%
Shane LewisRep28,56928.3%

376 of 376 precincts reporting, as stated by California Secretary of State. As reported by California Secretary of State (the source says it was updated November 5, 2026, 9:23 a.m.). Rows are in the order the source lists them, which is not a ranking. Official source · All California results

Worth knowing

Each fact is worked out from the official records linked beside it. None is a prediction or a rating.

Past results

Share of the vote for this district, 1932 to 2024Percent of all votes counted in each regular general election. A gap means the party had no candidate or no count was published.
  • Democratic candidate
  • Republican candidate
Share of the vote for this district, 1932 to 2024Line chart with 2 series from 1932 to 2024. The same figures are in the data table below. A gap in a line means no figure.0%25%50%75%100%195019752000Democratic candidate, 2024: 64.63%Republican candidate, 2024: 35.37%64.6%35.4%Share of the vote for this district, 1932 to 2024Line chart with 2 series from 1932 to 2024. The same figures are in the data table below. A gap in a line means no figure.0%25%50%75%100%19401960198020002020Democratic candidate, 2024: 64.63%Republican candidate, 2024: 35.37%Democratic candidate 64.6%Republican candidate 35.4%

District lines are redrawn after each census and sometimes in between, so the same district number did not always cover the same ground. A break in a line means no figure was published or held for that year. It does not mean zero.

Data table: Share of the vote for this district, 1932 to 2024
Share of the vote for this district, 1932 to 2024
YearDemocratic candidateRepublican candidate
193253.24%37.37%
193456.27%43.17%
193658.94%41.03%
193848.2%48.52%
194044.64%54.32%
194243.14%56.83%
194455.63%44.32%
194647.19%52.79%
194851.14%44.87%
195050.48%49.51%
195244.47%55.51%
195444.98%55.01%
195640.75%59.25%
195839.95%60.03%
196030.02%69.95%
196258.88%41.12%
196466.71%33.28%
196644.12%55.88%
196833.41%65.17%
197035.55%63.2%
197233.53%66.47%
197447.36%52.64%
197635.8%64.2%
197840.74%59.26%
198028.97%71.03%
198259.49%38.26%
198467.28%32.72%
198671.27%28.73%
198869.94%30.06%
1990100%No figure
199284.66%No figure
199465.52%31.68%
199665.72%31.82%
199886.79%No figure
200067.1%31.31%
200251.26%43.37%
200467.49%32.51%
200665.48%34.52%
2008100%No figure
201058.48%41.52%
201270.49%29.51%
201467.75%32.25%
201671.15%28.85%
201874.49%25.51%
202063.17%No figure
202265.85%34.15%
202464.63%35.37%

Source: Federal Election Commission, Federal Elections and Clerk of the House of Representatives, Statistics of the Presidential and Congressional Election and MIT Election Data and Science Lab, U.S. House of Representatives 1976-2024 (compiled from the Clerk of the House). As of Nov 5, 2026.

Winners and margins, 1932 to 2024
Winners and margins
YearMost votesMargin over the runner-up
2024Zoe Lofgren (Democratic)66,842 votes (29.3 points)
2022Zoe Lofgren (Democratic)48,039 votes (31.7 points)
2020Anna G. Eshoo (Democratic)90,637 votes (26.3 points)
2018Anna G. Eshoo (Democratic)148,046 votes (49.0 points)
2016Anna G. Eshoo (Democratic)136,990 votes (42.3 points)
2014Anna G. Eshoo (Democratic)69,734 votes (35.5 points)
2012Anna G. Eshoo (Democratic)123,728 votes (41.0 points)
2010Dennis Cardoza (Democratic)21,137 votes (17.0 points)
2008Dennis A. Cardoza (Democratic)Unopposed
2006Dennis A. Cardoza (Democratic)33,651 votes (31.0 points)
2004Dennis A. Cardoza (Democratic)53,759 votes (35.0 points)
2002Dennis A. Cardoza (Democratic)8,653 votes (7.9 points)
2000Gary A. Condit (Democratic)64,538 votes (35.8 points)
1998Gary A. Condit (Democratic)100,753 votes (73.6 points)
1996Gary A. Condit (Democratic)56,132 votes (33.9 points)
1994Gary A Condit (Democratic)47,060 votes (33.8 points)
1992Gary A Condit (Democratic)114,397 votes (69.3 points)
1990Richard H Lehman (Democratic)Unopposed
1988Richard H Lehman (Democratic)71,681 votes (39.9 points)
1986Richard H Lehman (Democratic)60,573 votes (42.5 points)
1984Richard H Lehman (Democratic)65,847 votes (34.6 points)
1982Richard Lehman (Democratic)33,098 votes (21.2 points)
1980William M Thomas (Republican)74,631 votes (42.1 points)
1978William M Thomas (Republican)26,763 votes (18.5 points)
1976William M Ketchum (Republican)44,975 votes (28.4 points)
1974William M. Ketchum (Republican)6,672 votes (5.3 points)
1972Bob Mathias (Republican)54,509 votes (32.9 points)
1970Robert B. (Bob) Mathias (Republican)37,656 votes (27.6 points)
1968Robert B. Mathias (Republican)48,734 votes (31.8 points)
1966Robert B. (Bob) Mathias (Republican)20,353 votes (11.8 points)
1964Harlan Hagen (Democratic)60,781 votes (33.4 points)
1962Harlan Hagen (Democratic)27,647 votes (17.8 points)
1960Craig Hosmer (Republican)74,116 votes (39.9 points)
1958Craig Hosmer (Republican)31,998 votes (20.1 points)
1956Craig Hosmer (Republican)32,197 votes (18.5 points)
1954Craig Hosmer (Republican)13,084 votes (10.0 points)
1952Craig Hosmer (Republican)17,981 votes (11.0 points)
1950Clyde Doyle (Democratic)1,869 votes (1.0 points)
1948Clyde Doyle (Democratic)12,966 votes (6.3 points)
1946Willis W. Bradley (Republican)7,145 votes (5.6 points)
1944Clyde Doyle (Democratic)19,341 votes (11.3 points)
1942Ward Johnson (Republican)12,797 votes (13.7 points)
1940Ward Johnson (Republican)13,168 votes (9.7 points)
1938Thomas M. Eaton (Republican)342 votes (0.3 points)
1936Byron N. Scott (Democratic)18,667 votes (17.9 points)
1934Byron N. Scott (Democratic)12,198 votes (13.1 points)
1932John H. Burke (Democratic)14,362 votes (15.9 points)

See every result for this district

Map

California's U.S. House districts, with District 18 outlined
  • This race
  • Another district
  • No figure
California's U.S. House districts, with District 18 outlinedMap of the California congressional districts of the 119th Congress, coloured by group with a group list in the table. The same information is in the data table below.CA-1: Another districtCA-2: Another districtCA-3: Another districtCA-4: Another districtCA-5: Another districtCA-6: Another districtCA-7: Another districtCA-8: Another districtCA-9: Another districtCA-10: Another districtCA-11: Another districtCA-12: Another districtCA-13: Another districtCA-14: Another districtCA-15: Another districtCA-16: Another districtCA-17: Another districtCA-19: Another districtCA-20: Another districtCA-21: Another districtCA-22: Another districtCA-23: Another districtCA-24: Another districtCA-25: Another districtCA-26: Another districtCA-27: Another districtCA-28: Another districtCA-29: Another districtCA-30: Another districtCA-31: Another districtCA-32: Another districtCA-33: Another districtCA-34: Another districtCA-35: Another districtCA-36: Another districtCA-37: Another districtCA-38: Another districtCA-39: Another districtCA-40: Another districtCA-41: Another districtCA-42: Another districtCA-43: Another districtCA-44: Another districtCA-45: Another districtCA-46: Another districtCA-47: Another districtCA-48: Another districtCA-49: Another districtCA-50: Another districtCA-51: Another districtCA-52: Another districtCA-18: This race

Outlines are the Census Bureau's simplified cartographic boundaries, drawn for display, not for legal boundaries. Group names are in the table and in each district's tooltip, not only shown by colour.

Data table: California's U.S. House districts, with District 18 outlined
California's U.S. House districts, with District 18 outlined
DistrictContest
CA-1Another district
CA-2Another district
CA-3Another district
CA-4Another district
CA-5Another district
CA-6Another district
CA-7Another district
CA-8Another district
CA-9Another district
CA-10Another district
CA-11Another district
CA-12Another district
CA-13Another district
CA-14Another district
CA-15Another district
CA-16Another district
CA-17Another district
CA-18This race
CA-19Another district
CA-20Another district
CA-21Another district
CA-22Another district
CA-23Another district
CA-24Another district
CA-25Another district
CA-26Another district
CA-27Another district
CA-28Another district
CA-29Another district
CA-30Another district
CA-31Another district
CA-32Another district
CA-33Another district
CA-34Another district
CA-35Another district
CA-36Another district
CA-37Another district
CA-38Another district
CA-39Another district
CA-40Another district
CA-41Another district
CA-42Another district
CA-43Another district
CA-44Another district
CA-45Another district
CA-46Another district
CA-47Another district
CA-48Another district
CA-49Another district
CA-50Another district
CA-51Another district
CA-52Another district

Source: U.S. Census Bureau cartographic boundary file for the 119th Congress. As of the 119th Congress (2025 to 2027) boundary file.

The outlined district is the one in force for the 119th Congress. A state that redrew its map for 2026 may vote on different lines; the official list above names the contest.

Campaign money

Totals each campaign reported to the Federal Election Commission for 2025 to 2026
CandidateRaisedSpentCash on handThrough
Zoe Lofgren $2M$1.6M$602KOct 14, 2026
Shane Lewis $115K$111K$4KOct 14, 2026

Each candidate's own reports to the Federal Election Commission, through the date shown. Candidates not listed have no FEC totals tied to them on our records. Each name links to the candidate's FEC page.

Headlines that name a candidate in this race

No headline from the outlets we follow has named a candidate in this race together with California in the last 30 days.

Headlines are shown as each outlet published them, with a link to the outlet. A headline appears here only when it names a candidate's full name and the state, or comes from a newsroom in the state. They are the outlets' reporting, not Power & Politics findings.

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