| CA-01 | DMike McGuireRJames Gallagher | | Mike McGuire 54% — James Gallagher 40% — Undecided 4% — Not voting 2% October 22, 2026 – October 26, 2026 · 444 likely voters · Margin of error: ±4.7 percentage points USC Center for the Political Future — nonpartisan, university-funded; no political, corporate or external sponsor · Released October 30, 2026. Initial ballot shown. After pushing undecideds: Mike McGuire / James Gallagher 56–41. Probability sample from PDI voter file; email invitations in three districts and email/text in one. Screened to very/somewhat likely or already voted. English and Spanish; CA-06/48 also offered Mandarin/Chinese, Korean and Vietnamese. Subgroup uncertainty is larger. USC Dornsife Democracy and Fair Elections Lab primary source · News coverage |
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| CA-02 | DJared HuffmanRRobin Littau | | No verified public district poll found as of November 2, 2026. |
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| CA-03 | DAmi BeraRRobb Tucker | | No verified public district poll found as of November 2, 2026. |
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| CA-04 | DEric JonesDMike Thompson | | No verified public district poll found as of November 2, 2026. |
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| CA-05 | DMichael MasudaRTom McClintock | | No verified public district poll found as of November 2, 2026. |
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| CA-06 | DRichard PanNPPKevin Kiley | Earlier Bullfinch Group surveys reported in July and September remain excluded from verified toplines because primary releases could not be located. USC’s October survey is shown here. Earlier coverage and sponsor caveats. | Richard Pan 51% — Kevin Kiley 38% — Undecided 10% — Not voting 1% October 22, 2026 – October 26, 2026 · 439 likely voters · Margin of error: ±4.7 percentage points USC Center for the Political Future — nonpartisan, university-funded; no political, corporate or external sponsor · Released October 30, 2026. Initial ballot shown. After pushing undecideds: Richard Pan / Kevin Kiley 55–43. Probability sample from PDI voter file; email invitations in three districts and email/text in one. Screened to very/somewhat likely or already voted. English and Spanish; CA-06/48 also offered Mandarin/Chinese, Korean and Vietnamese. Subgroup uncertainty is larger. USC Dornsife Democracy and Fair Elections Lab primary source · News coverage |
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| CA-07 | DDoris MatsuiDMai Vang | | No verified public district poll found as of November 2, 2026. |
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| CA-08 | DJohn GaramendiRRudy Recile | | No verified public district poll found as of November 2, 2026. |
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| CA-09 | DJosh HarderRJohn McBride | | No verified public district poll found as of November 2, 2026. |
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| CA-10 | DMark DeSaulnierRJeff Frese | | No verified public district poll found as of November 2, 2026. |
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| CA-11 | DConnie ChanDScott Wiener | | No verified public district poll found as of November 2, 2026. |
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| CA-12 | DJamie JoyceDLateefah Simon | | No verified public district poll found as of November 2, 2026. |
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| CA-13 | DAdam GrayRKevin Lincoln | | No verified public district poll found as of November 2, 2026. |
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| CA-14 | DMelissa HernandezDAisha Wahab | | No verified public district poll found as of November 2, 2026. |
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| CA-15 | DKevin MullinRCharles Hoelter | | No verified public district poll found as of November 2, 2026. |
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| CA-16 | DSam LiccardoRPeter Sundin Soulé | | No verified public district poll found as of November 2, 2026. |
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| CA-17 | DRo KhannaRRitesh Tandon | | No verified public district poll found as of November 2, 2026. |
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| CA-18 | DZoe LofgrenRShane Lewis | | No verified public district poll found as of November 2, 2026. |
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| CA-19 | DJimmy PanettaRPeter Coe Verbica | | No verified public district poll found as of November 2, 2026. |
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| CA-20 | DSandra Van ScotterRVince Fong | | No verified public district poll found as of November 2, 2026. |
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| CA-21 | DJim CostaRKyle Kirkland | | No verified public district poll found as of November 2, 2026. |
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| CA-22 | DRandy VillegasRDavid G. Valadao | USC independent polling is now available; forecasters still rate the race Toss-up/Lean D. | Randy Villegas 52% — David Valadao 41% — Undecided 6% — Not voting 1% October 22, 2026 – October 28, 2026 · 356 likely voters · Margin of error: ±5.2 percentage points USC Center for the Political Future — nonpartisan, university-funded; no political, corporate or external sponsor · Released October 30, 2026. Initial ballot shown. After pushing undecideds: Randy Villegas / David Valadao 54–44. Probability sample from PDI voter file; email invitations in three districts and email/text in one. Screened to very/somewhat likely or already voted. English and Spanish; CA-06/48 also offered Mandarin/Chinese, Korean and Vietnamese. Subgroup uncertainty is larger. USC Dornsife Democracy and Fair Elections Lab primary source · News coverage |
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| CA-23 | DTessa Lynn HodgeRJay Obernolte | | No verified public district poll found as of November 2, 2026. |
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| CA-24 | DSalud CarbajalRBob Smith | | No verified public district poll found as of November 2, 2026. |
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| CA-25 | DRaul RuizRJoe Males | | No verified public district poll found as of November 2, 2026. |
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| CA-26 | DJacqui IrwinRSam Gallucci | | No verified public district poll found as of November 2, 2026. |
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| CA-27 | DGeorge WhitesidesRJason Gibbs | | No verified public district poll found as of November 2, 2026. |
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| CA-28 | DJudy ChuRApril A. Verlato | | No verified public district poll found as of November 2, 2026. |
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| CA-29 | DAngélica María DueñasDLuz Maria Rivas | | No verified public district poll found as of November 2, 2026. |
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| CA-30 | DLaura FriedmanRScott Alan Meyers | | No verified public district poll found as of November 2, 2026. |
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| CA-31 | DGil CisnerosREric Ching | | No verified public district poll found as of November 2, 2026. |
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| CA-32 | DBrad ShermanRLarry Thompson | | No verified public district poll found as of November 2, 2026. |
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| CA-33 | DPete AguilarRStephanie M. Vargas | | No verified public district poll found as of November 2, 2026. |
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| CA-34 | DJimmy GomezDAngela Gonzales-Torres | | Angela Gonzales-Torres 34% — Jimmy Gomez 34% — Undecided 30% October 16, 2026 – October 24, 2026 · 423 likely voters · Margin of error: ±4.8 percentage points USC Democracy and Fair Elections Lab; independently university-funded, no political or corporate sponsorship · Released October 27, 2026. Same-party general election. Initial ballot: Gomez 34%, Gonzales-Torres 34%, undecided 30%; no residual is inferred. RCP lists the pushed result: Gonzales-Torres 51%, Gomez 45%. The primary PDF is now accessible and confirms both versions. Probability voter-file sample, email invitations, weighted, English/Spanish/Mandarin-Chinese/Korean/Vietnamese. Subgroup uncertainty is larger. USC Democracy and Fair Elections Lab primary source · News coverage |
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| CA-35 | DNorma J. TorresRMike Cargile | | No verified public district poll found as of November 2, 2026. |
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| CA-36 | DTed W. LieuRHouston Brignano | | No verified public district poll found as of November 2, 2026. |
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| CA-37 | DSydney Kamlager-DoveDSamantha Mota | | No verified public district poll found as of November 2, 2026. |
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| CA-38 | DHilda SolisRPedro Antonio Casas | | No verified public district poll found as of November 2, 2026. |
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| CA-39 | DMark TakanoRSteve Manos | | No verified public district poll found as of November 2, 2026. |
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| CA-40 | RKen CalvertRYoung Kim | | No verified public district poll found as of November 2, 2026. |
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| CA-41 | DLinda SánchezRMitch Clemmons | | No verified public district poll found as of November 2, 2026. |
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| CA-42 | DRobert GarciaRBrian Burley | | No verified public district poll found as of November 2, 2026. |
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| CA-43 | DMaxine WatersRCristian Morales | | No verified public district poll found as of November 2, 2026. |
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| CA-44 | DNanette Diaz BarraganRGenevieve Angel | | No verified public district poll found as of November 2, 2026. |
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| CA-45 | DDerek TranRChuong V. Vo | | No verified public district poll found as of November 2, 2026. |
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| CA-46 | DLou CorreaRDavid Pan | | No verified public district poll found as of November 2, 2026. |
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| CA-47 | DDave MinRJenny Rae Le Roux | | No verified public district poll found as of November 2, 2026. |
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| CA-48 | DMarni von WilpertRJim Desmond | | Marni von Wilpert 48% — Jim Desmond 40% — Undecided 10% — Not voting 2% October 22, 2026 – October 27, 2026 · 474 likely voters · Margin of error: ±4.5 percentage points USC Center for the Political Future — nonpartisan, university-funded; no political, corporate or external sponsor · Released October 30, 2026. Initial ballot shown. After pushing undecideds: Marni von Wilpert / Jim Desmond 52–44. Probability sample from PDI voter file; email invitations in three districts and email/text in one. Screened to very/somewhat likely or already voted. English and Spanish; CA-06/48 also offered Mandarin/Chinese, Korean and Vietnamese. Subgroup uncertainty is larger. USC Dornsife Democracy and Fair Elections Lab primary source · News coverage |
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| CA-49 | DMike LevinRArmen Kurdian | | No verified public district poll found as of November 2, 2026. |
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| CA-50 | DScott PetersRSteve Cohen | | No verified public district poll found as of November 2, 2026. |
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| CA-51 | DSara JacobsRRicardo Cabrera | | No verified public district poll found as of November 2, 2026. |
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| CA-52 | DJuan VargasRJeff Belle | | No verified public district poll found as of November 2, 2026. |
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