Traffic on a highway drives under an overpass bridge with signs hanging above reading “Worried? Register to Vote,” and another reading “Vote Yes on Prop 50.” Next to the signs are American Flags hanging on the fence and people holding signs.
A group called the “Bridge Brigade” posts signs promoting Prop. 50 on an overpass on Highway 198 in Lemoore on Sept. 26, 2025. Photo by Larry Valenzuela, CalMatters/CatchLight Local

In the latest battle between Democrats and President Donald Trump, the fate of the state’s Proposition 50 will be decided today.

Californians who haven’t already submitted their ballots are heading to the polls to either approve or reject Gov. Gavin Newsom’s plan to redraw the state’s congressional districts in a way that favors Democrats through 2030. More than 6.6 million ballots have been cast as of Sunday.

As CalMatters’ Maya C. Miller explains, opponents of the measure argue that sidestepping California’s independent redistricting commission is undemocratic and limits Republican voices. Proponents, meanwhile, have been pushing an anti-Trump message focused on countering gerrymandering efforts in other GOP-controlled states, and potentially winning back the U.S. House of Representatives in next year’s midterm elections.

That rhetoric appears to be working: The Public Policy Institute of California found that 56% of likely voters said they would support the measure, compared to 43% who oppose it. Reporting on a wider gap, the Berkeley Institute of Governmental Studies found that 60% of likely voters said they’d vote to pass Prop. 50, versus 38% who’d oppose.

  • Eric Schickler, co-director of IGS: “The results suggest that Democrats have succeeded in framing the debate surrounding the proposition around support or opposition to President Trump and national Republicans, rather than about voters’ more general preference for nonpartisan redistricting.”

If Prop. 50 passes, it could serve as momentum for other Democratic-leaning states that are considering redistricting. But the party would still face challenges to regain the House through gerrymandering, including tight deadlines and legal disputes.

Read more about Prop. 50’s polling here, and keep up with the latest news on the measure as it unfolds today from Maya and CalMatters’ Jeanne Kuang.

More on Prop. 50: As part of our partnership with PBS SoCal, Jeanne and CalMatters’ video strategy director Robert Meeks have a video segment on everything you need to know about Prop. 50 in two minutes. Watch it here.

SoCalMatters airs at 5:58 p.m. weekdays on PBS SoCal.


🗓️CalMatters Events in your community:

  • Sacramento: Join CalMatters and Capitol Impact Friday for a watch party of the Health Matters: A Conversation with California’s Next Governor forum. Candidates for California’s next governor will respond directly to community voices about what matters most for health — from clean air and safe housing, to good jobs and strong families. Register.
  • San Jose: What will power California’s AI future? Join us Nov. 18 for a timely conversation on how California can balance the rapid rise of AI-driven data centers with its clean-energy goals. Register.


Tiny creatures poised to create big problems for CA agriculture

An underwater view of golden mussels attached to the bottom of a doc. The mussels are reflected on the clear surface of the water on top.
An underwater view of golden mussels growing on a dock at a Delta boatyard in Stockton on Oct. 23, 2025. Photo by Fred Greaves for CalMatters

A year after golden mussels were first detected in the Sacramento-San Joaquin Delta, these thimble-sized, invasive mollusks continue to spread — threatening critical infrastructure and farmers in the Delta, writes CalMatters’ Rachel Becker.

Native to China and Southeast Asia, golden mussels can attach themselves to underwater surfaces, clog pipes — like they already have done in Contra Costa County’s water systems — and damage infrastructure. But to stop their spread, state agencies have prioritized protecting the rest of the state from the Delta in lieu of protecting the Delta itself, argue residents and local leaders.

California lawmakers earmarked $20 million in funds this year to fight off the mussels’ invasion statewide, but none of that money was allocated to help the Delta, according to the California Department of Fish and Wildlife.

Because the region produces more than $4.6 billion in agricultural output, farming could be especially affected, said Christopher Neudeck, a district engineer for many of the Delta islands. 

  • Neudeck: “If (the siphons) plug up, we’re going to lose billions of dollars worth of agricultural production. We know it’s become extremely problematic. But nothing has really been done. We’re just in a holding pattern, waiting to let the second shoe drop.”

Read more here.

Conservative values tour set to finish in Berkeley

A person wearing a white shirt points to a cheering crowd while holding red "Make American Great Again" hats with his other hand.
U.S. right-wing activist and commentator Charlie Kirk shortly before he was fatally shot at an event at Utah Valley University in Orem, Utah. Photo by Trent Nelson, The Salt Lake Tribune via Reuters

Turning Point USA plans to make its final tour stop at UC Berkeley on Nov. 10, raising concerns about campus safety among supporters and critics of the organization alike, report Ella Carter-Klauschie and Martin Romero of CalMatters’ College Journalism Network.

Turning Point USA is a nonprofit that promotes conservative values on college campuses. Its co-founder, Charlie Kirk, was fatally shot in September during a tour stop at a Utah university, reigniting debates about political violence and free speech. 

After a brief pause, the tour has since stopped at nine college campuses across the U.S. Its last stop will be at UC Berkeley, an acclaimed public university known for its progressive student activism. It will also be the organization’s first event at a California college campus since Kirk’s death.

Dan Mogulof, a UC Berkeley spokesperson, said the Berkeley chapter expected 300 attendees as of Oct. 14. The venue where the event is being held can hold nearly 2,000. Mogulof declined to provide details on how UC Berkeley plans to secure the event, but said the university will be following protocols set by the major events policy.

Read more here.

And lastly: Prison doctor wins judgement

About 57% of staff in California prisons have skipped COVID vaccines. In this image from 2018, inmates pass a correctional officer as they leave an exercise yard at the California Medical Facility in Vacaville. Photo by Rich Pedroncelli, AP Photo
Inmates pass a correctional officer at a state prison in Vacaville on June 20, 2018. Photo by Rich Pedroncelli, AP Photo

Six years after an inmate reportedly told another prison psychologist that he wanted to cut off Dr. Beth Fischgrund’s head, a jury awarded a multimillion-dollar settlement to Fischgrund, who accused her employer of failing to respond appropriately to the threat. Read more from CalMatters’ Adam Ashton.



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Lynn La is the newsletter writer for CalMatters, focusing on California’s top political, policy and Capitol stories every weekday. She produces and curates WhatMatters, CalMatters’ flagship daily newsletter...