By The Navarro Report
California Attorney General Rob Bonta filed or supported three separate legal actions against the Trump administration in a single 48-hour stretch this week, the latest evidence of a sustained, high-volume legal strategy that has made his office one of the most active institutional checks on federal policy in the country.
On Monday, Bonta co-led a coalition of 25 states in filing a lawsuit in the U.S. Court of International Trade challenging the administration’s decision to raise tariffs on more than 80 countries, including the European Union and nearly 60 other trading partners that together account for 99.4 percent of all U.S. imports. It was Bonta’s third distinct legal challenge to Trump-era tariff policy — the first, targeting IEEPA tariffs, was struck down by the U.S. Supreme Court in February; the second, involving Section 122 tariffs, was struck down by the U.S. Court of International Trade in May. This round targets tariffs imposed under Section 301 of the Trade Act of 1974. CA + 3
Bonta’s office has now filed 82 lawsuits against the current Trump administration, a pace that has turned California’s Department of Justice into something closer to a standing litigation shop against federal policy than a traditional state attorney general’s office. Bonta has been direct about the rationale, arguing that tariffs function as taxes that raise costs for American consumers and businesses without congressional authorization, while the White House has defended the levies as legitimate tools to combat unfair trade practices and revive domestic manufacturing. Edinburg PostCA
The second front is arguably more consequential for California families directly. On Tuesday, Bonta joined a multistate coalition in filing an amicus brief opposing the sharing of taxpayer data between the IRS and Immigration and Customs Enforcement, urging the First Circuit Court of Appeals to uphold a lower court order blocking the practice. The brief argues that misusing taxpayer data undermines the trust underlying the state and federal tax collection system, and Bonta has framed the fight as part of a broader pattern: his office has separately sued to block the misuse of Medicaid, SNAP, and TANF data for what it describes as an unprecedented mass surveillance effort tied to immigration enforcement. CA + 2
That framing matters locally. California, and San Diego County in particular, sit at the intersection of immigration enforcement and public benefits administration in a way few other states do, given the proximity to the border and the size of mixed-status households relying on programs like Medi-Cal and CalFresh. Any erosion of the wall between tax, health, and immigration data has outsized consequences here, a dynamic that connects directly to this week’s separate story of UC San Diego severing its own ties to a federal border enforcement grant program.
Bonta’s office also weighed in on a third matter this week, co-leading an amicus brief supporting the city of Boulder’s efforts to hold major oil companies accountable for allegedly misleading the public about climate change, and announcing a $400 million settlement in principle with Sandoz over allegations the generic drug manufacturer conspired to inflate prices and limit competition — a reminder that the office’s docket extends well beyond its confrontations with Washington. CACA
Taken together, the week’s activity illustrates both the scale of California’s legal resistance strategy and its limits. Court challenges can delay or block specific policies, and Bonta’s track record — two tariff victories already on the board — suggests the state’s legal theories are landing with judges. But litigation is inherently reactive; it responds to policies already announced rather than shaping them in advance, and each victory can be followed by a modified version of the same policy, as the current tariff fight illustrates. For California businesses and families watching from the sidelines, the practical question is not whether Bonta’s office will keep filing suits — it clearly will — but whether the courts can resolve them faster than Washington can find new legal theories to test.
This article was produced under The Navarro Report’s Human-Directed AI Journalism mode