Two candidates vying to represent one of California's most sprawling legislative districts will meet on a Modesto stage Thursday morning for their first head-to-head debate since the June primary knocked out incumbent Marie Alvarado-Gil. Democrat Jaron Brandon, a Tuolumne County supervisor, and Republican Alexandra Duarte, a Hughson nursery co-owner, will square off at 7 a.m. at Greens on Tenth, with tickets priced at $20 for the one-hour event.
The debate, first reported by the Turlock Journal, is co-sponsored by the League of Women Voters of Stanislaus County, the Rotary Clubs of Modesto, and Modesto Focus. It marks the second time Brandon and Duarte have shared a stage — the two also debated in April, when Alvarado-Gil was still in the race. Ahead of that, on Wednesday, Brandon is also scheduled to attend the Be Informed candidate forum at the Ceres Community Center from 12:15 to 1 p.m., according to the same report.
A District Bigger Than 10 States
California Senate District 4 stretches across all or parts of 13 counties and covers more than 25,000 square miles, according to a report cited on Facebook — a footprint larger than 10 U.S. states. The district runs from north of Lake Tahoe near Reno down past Death Valley near Las Vegas, and reaches toward Santa Clara County near Silicon Valley, per the Turlock Journal. It includes 16 tribal nations, eight area codes, and more than 1 million constituents.
Despite that Republican-leaning tilt — the electorate breaks down to 39 percent Republican and 34 percent Democrat, per the Turlock Journal — Alvarado-Gil originally won the seat as a Democrat in November 2022, taking 52.7% of the general-election vote against fellow Democrat Tim Robertson after six Republican candidates split the conservative primary vote, according to MultiState.
How Alvarado-Gil's Ouster Reshaped the Race
Alvarado-Gil's path to reelection collapsed well before June. In August 2024, she switched her party affiliation from Democrat to Republican, becoming the first California state lawmaker in nearly 80 years to switch parties while in office, a move that led Senate Democratic leadership to strip her of all committee assignments, according to a report that cited KCRA. She said at the time that she was dissatisfied with Democratic crime policies.
The following month brought more turmoil: in September 2024, Alvarado-Gil was sued in Sacramento County Superior Court by her former chief of staff, who alleged sexual harassment and retaliatory firing, according to the Los Angeles Times. Alvarado-Gil countered in November 2024 with her own complaint alleging campaign embezzlement and threats. The dispute became a defining backdrop to her reelection bid as an incumbent.
When the June 2 primary arrived, Brandon topped the field with nearly 107,000 votes — 41.3%, according to MultiState's certified returns — followed by Duarte with about 84,000 votes, or 32.1%. Alvarado-Gil was eliminated with just over 69,000 votes, or 26.6% of the total, according to the Turlock Journal. Under California's top-two system, only Brandon and Duarte advanced to November.
Chasing the Alvarado-Gil Vote
With Alvarado-Gil out, both remaining candidates are courting her former supporters. Duarte's campaign projects she could reach roughly 130,000 votes if she wins about 46,000 of Alvarado-Gil's backers, while Brandon's campaign projects a similar 130,000-vote total if he can peel off just over 23,000 of those voters — meaning Brandon needs to win over only roughly one-third of people who voted for Alvarado-Gil, per the Turlock Journal's analysis. Alvarado-Gil performed best in Alpine, Amador, El Dorado, Mariposa, Mono, and Tuolumne counties, though Brandon still won Alpine, El Dorado, Mariposa, Mono, and Tuolumne in the June primary; Alvarado-Gil carried only Amador.
Alvarado-Gil, who lives in Jackson, has not endorsed Duarte, according to the Turlock Journal. Brandon campaign manager Brian Eugeni said Brandon has a clear path to victory, with the campaign counting on increased Democratic turnout in November, when the general election will likely draw more than 260,000 total voters.
Not everyone agrees with that read. Mike Lynch, owner of Mike Lynch Consulting in Modesto who has worked on political campaigns for more than 40 years, regards Duarte as the betting favorite and said the district's makeup represents too high a mountain to climb for Brandon, according to the Turlock Journal. Duarte campaign staff did not return a message seeking comment for that report.
Contrasting Visions From the Sonora Forum
The candidates' philosophical divide was on display months before the primary. At a March candidate forum in Sonora, Brandon pitched himself as a pragmatist who could secure rural representation on legislative committees, while Duarte argued that state agencies create artificial scarcity in water and housing to assert control over local communities, according to myMotherLode.com. Duarte is a co-owner of Duarte Nursery in Hughson and manages grape farming operations in El Dorado County, building her campaign around expanding water storage, rolling back farm regulations, and opposing state mandate policies, per a report from AgNet West.
Duarte is married to former Congressman John Duarte, who represented California's 13th Congressional District from 2023 to 2025 before losing his reelection bid to Democrat Adam Gray by fewer than 200 votes in November 2024, according to LegiStorm. Brandon, meanwhile, was elected to the Tuolumne County Board of Supervisors representing District 5 in 2020, building his campaign around his roots in the Sierra foothills and his experience in local fiscal oversight, per a Tuolumne County government profile.
An Aggressive Mailer Still Looms
The intra-party tension from the primary hasn't fully faded. During the campaign, Duarte drew censure from the California Republican Party and local GOP groups after sending mailers depicting her firing a pistol at a tin can bearing Alvarado-Gil's image, according to the Ceres Courier. Duarte's campaign defended the mailer at the time by pointing to Alvarado-Gil's past Democratic voting record, the outlet reported.
Brandon's team says the plan going forward is straightforward: continue showing up, listening to people, and making his case directly to voters across all 13 counties, according to the Turlock Journal. Whether that ground game, or Duarte's agricultural and water-policy pitch, can consolidate the roughly 70,000 voters Alvarado-Gil leaves behind will likely take center stage when the two candidates meet again Thursday morning in Modesto.
