Riverside County Sheriff Faces Legal Battles Over Election Fraud Investigation

Attorney General Seeks to Pause Probe, Citing Concerns Over Ballot Security and Transparency

Apr. 6, 2026 at 9:51pm

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A dynamic, fragmented painting featuring a ballot box, voting machine, and sheriff's badge in a swirling composition of geometric shapes and bold colors, conveying the complex and charged nature of the election fraud investigation.A fractured, high-energy illustration captures the tensions between local law enforcement and state oversight in a probe of alleged election fraud.Riverside Today

Riverside County Sheriff Chad Bianco is embroiled in a series of legal battles with California Attorney General Rob Bonta and voting rights groups over Bianco's investigation into alleged election fraud stemming from last November's special statewide Prop 50 election. The court has granted Bonta's request for an expedited filing schedule on a petition to pause Bianco's investigation, while Bianco argues the probe is legitimate and the lawsuits are politically motivated.

Why it matters

The case highlights the ongoing tensions between local law enforcement and state authorities over the handling of election-related investigations, with concerns raised about ballot security, transparency, and the potential for political interference. The outcome could set precedents around the scope of a sheriff's investigative powers and the oversight role of the state Attorney General's office.

The details

In March, Bianco held a press conference announcing an investigation into potential election fraud, prompting a series of lawsuits from Bonta and voting rights groups like the UCLA Voting Rights Project. Bonta has petitioned the court to order Bianco to comply with directives to pause the investigation, preserve evidence, and return ballots to the Registrar of Voters. Bianco has argued the investigation is legitimate and the lawsuits are politically motivated, while also supporting motions to unseal the search warrants used in the probe. The case is now working its way through the California court system, with the state Supreme Court considering whether to take up the matter.

  • On March 20, Bianco held a press conference announcing the election fraud investigation.
  • In early April, Bonta filed a petition with the Riverside County Superior Court seeking to pause Bianco's investigation.
  • On April 6, the Superior Court granted Bonta's request for an expedited filing schedule on the petition.
  • The next hearing in the case is scheduled for April 13 at 8:30 a.m.

The players

Chad Bianco

The Riverside County Sheriff who is conducting an investigation into alleged election fraud and has challenged the legal efforts to pause the probe.

Rob Bonta

The California Attorney General who has petitioned the court to order Bianco to comply with directives to pause the investigation, preserve evidence, and return ballots.

Riverside Election Integrity Team (REIT)

A group of Riverside County residents who have provided information to Bianco's office about the election investigation.

UCLA Voting Rights Project (VRP)

A voting rights group that has filed a lawsuit on behalf of four Riverside County voters challenging Bianco's handling of the election investigation.

Susan Seager

A First Amendment and media law attorney who has criticized the sealing of search warrants related to Bianco's investigation.

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What they’re saying

“The judge has an absolute documented history of political activism. When we knew what judge it was we had, we had absolutely every expectation that she was going to do just what she did, which was to defy logic, defy common sense and defy legal precedent based on absolute lies from the Attorney General.”

— Chad Bianco, Riverside County Sheriff

“What's going on in Riverside may be routine, but that doesn't mean it's not illegal. It is unlawful what the judge did here, and the judges in Riverside, and I've seen also in [Los Angeles] County, are thumbing their noses at the law that says after search warrants are executed, they shall be, that means they must be, open to the public.”

— Susan Seager, First Amendment and media law attorney

What’s next

The California Supreme Court is expected to decide whether to take up the cases filed by Attorney General Bonta and the UCLA Voting Rights Project challenging Bianco's investigation.

The takeaway

The legal battles over Riverside County Sheriff Chad Bianco's election fraud investigation highlight the ongoing tensions between local law enforcement and state authorities over the handling of such probes, raising concerns about ballot security, transparency, and the potential for political interference.