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U.S. House, District 31

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Chino, Montclair. Some of these cities are split between districts, so check your sample ballot.

Key findings

  • The county part is most of Chino (84%) and nearly all of Montclair (95%); the rest is in Los Angeles County. [1]
  • Gil Cisneros (D), in his first term, faces Eric Ching (R). June primary: Cisneros 61.1%, Ching 23.8%. [2]

U.S. House, District 31

Your pick

Gil Cisneros (D, incumbent)

  • Navy veteran; represented CA-39 in 2019–2021; won this seat in 2024 with 59.7%. [2][3]

Eric Ching (R)

  • Ballot designation: entrepreneur. [4] I found no independent reporting on his 2026 campaign.

Sources 4

2 official2 reference
  1. ^ CA Senate, 2025 CD-31 district data sdmg.senate.ca.gov Official
  2. ^ a b Ballotpedia, CA-31 Ballotpedia Reference
  3. ^ Wikipedia, Gil Cisneros Wikipedia Reference
  4. ^ CA Secretary of State, certified candidate list (2026 general) elections.cdn.sos.ca.gov Official