content.solanocounty.gov (opens in a new tab)Solano County Registrar of Voters -- "CANDIDATE FILED LOG - November 3, 2026 GENERAL ELECTION" (AS OF 8/20/2026, printed 8/27/2026): a materially updated republication, under the same filename already on file for this dataset's county-level Solano shard, of the July version the local-authoring queue's original estimate was drawn from. Its CITY OF VALLEJO section flags all three district contests ON THE BALLOT: District 2 with exactly one qualified candidate, Diosdado "JR" Matulac (Incumbent, "Councilmember / Restorative Specialist"); District 4 with Charles Palmares (Incumbent), Brianna Rogers, and Chris Platzer qualified, plus Roxann Reyes marked "DID NOT COMPLETE FILING"; District 5 with Tara Beasley Stansberry, Tanya Hall, and Rebekah Truemper qualified, plus incumbent Peter Bregenzer marked "DID NOT FILE." No Vallejo Mayor section appears anywhere in the document
cityofvallejo.net (opens in a new tab)City of Vallejo City Clerk -- "FINAL CANDIDATE ROSTER: Candidates for Vallejo Councilmembers in Districts 2, 4 & 5, November 3, 2026" (dated 8/12/26, the close of District 5's extended nomination period): independently corroborates the county log's qualified roster and adds filing-mechanics detail -- Roxann Reyes (District 4) was issued supplemental nomination papers 8/6-8/7/26 but has no corresponding filed date, unlike the other three District 4 candidates, who each show a complete issue-and-file date pair; Tara Beasley Stansberry (District 5) needed and filed a supplemental nomination petition 7/29-7/30/26. Carries no Mayor section at all -- its own title names only Districts 2, 4, and 5
cityofvallejo.net (opens in a new tab)City of Vallejo -- its own "Mayor & City Council" page: names the sitting seven-member Council by district and term -- Mayor Andrea Sorce (at-large, term expires January 2029), Vice Mayor Diosdado "JR" Matulac (District 2), Alexander Matias (District 1), Tonia Lediju PhD (District 3), Charles Palmares (District 4), Peter Bregenzer (District 5), Helen-Marie Gordon (District 6) -- and confirms Districts 2, 4, and 5 are the three seats with terms expiring January 2027, the seats up this cycle. States councilmembers are "elected by-district" while the Mayor is "directly elected," both to 4-year terms, with a two-consecutive-term charter limit
vallejosun.com (opens in a new tab)Vallejo Sun, Aug. 13, 2026, "Several incumbents decline to run again in November elections for Vallejo, Benicia" (by Ryan Geller and Gretchen Zimmermann): profiles all three Vallejo council races with real, checkable biographical detail for all seven qualified candidates -- confirms Matulac unopposed in District 2; Palmares's Army career and traffic-calming record, Rogers's Georgetown degree and board seats, and Platzer's Coast Guard license and 2020 Planning Commission resignation ("after he was seen drinking beer and threw his cat during a public Zoom meeting") in District 4; and Hall's, Beasley Stansberry's, and Truemper's civic roles, 2022 election results, and platforms in the open District 5 seat
en.wikipedia.org (opens in a new tab)Wikipedia -- "Vallejo, California": used narrowly for the city's 2020 Census population (126,090) and its general district-based council-manager structure; does not cover the 2026 election, and its claim that the Vice Mayor title is "currently held by the District 5 representative" is stale, contradicted by the city's own current roster (District 2's Matulac), so it is not used
cal-access.sos.ca.gov (opens in a new tab)A negative-result campaign-finance search: California's Cal-Access campaign-finance search (cal-access.sos.ca.gov) returned only a blocked bot-verification shell for a direct filer search against each of the seven qualified Vallejo candidates this session, the same recurring bot-detection failure mode documented elsewhere in this dataset. Cal-Access also covers only state-level committees, not local city-council candidates, in any case. Documents the absence of a reachable financial-disclosure source for these three contests, not any candidate's actual finances

Last updated September 1, 2026.

City of Vallejo

Vallejo City Council, District 2

This person would hold one of six district seats on Vallejo's City Council. The council has seven members, including a directly elected Mayor. Members vote on city ordinances, the budget, and land use. The term is four years. The Council picks a Vice Mayor from its own district-elected members. Voters do not elect the Vice Mayor directly.

Only one candidate qualified for Vallejo's District 2 council seat. The candidate is Vice Mayor Diosdado "JR" Matulac. They are unopposed on the November 3 ballot.

This person would hold the District 2 seat (North Vallejo) on Vallejo's 7-member City Council -- six district councilmembers plus a directly elected, at-large Mayor governing this 126,090-resident North Bay city. The term is four years.

Both the county's own Candidate Filed Log and the City Clerk's own Final Candidate Roster mark this contest ON THE BALLOT despite the single filer -- California still lets a county print a genuinely single-candidate race rather than cancel it, which is what happens here.

Diosdado "JR" Matulac

Matulac is Vallejo's sitting Vice Mayor. They are the incumbent District 2 councilmember. Their ballot title lists them as a councilmember and restorative specialist. The Vallejo Sun reports they are running unopposed in North Vallejo. No campaign platform or website was found. No other news coverage was found for them.

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