President Donald Trump‘s first term in the White House was filled with a barrage of lawsuits led by California, challenging the Republican administration’s policies.
His second term is shaping up to be no different.
California has led or been directly involved in dozens of lawsuits challenging the second Trump administration’s agenda in less than a year. (This count does not include cases when California has played a supporting role to other lawsuits, such as through amicus briefs or regulatory letters.)
The cases include challenges to actions the president has taken that directly involve California, such as the federalization of the California National Guard and deployment of troops and Marines to Los Angeles amid the administration’s ramped-up immigration enforcement actions and protests. But there are also legal efforts to halt executive orders that have broader, national implications, including one seeking to make sweeping changes to the nation’s elections.
Gov. Gavin Newsom, a Democrat and one of Trump’s most vociferous critics, signed legislation in the weeks after Trump’s 2025 inauguration allocating an additional $25 million to the state’s Department of Justice for lawsuits against the administration. Republicans, at the time, worried the move would upset the Trump administration and result in ramifications for California, such as the loss of federal aid for issues like wildfire recovery.
In a recent report to the California Legislature, the attorney general’s office said it has already received $5 million of that allocated funding for lawsuits.
California sued the first Trump administration 123 times, with Xavier Becerra as California’s attorney general. The state won about two-thirds of those cases, which were mostly involving environmental rules and immigration.
• Also see: America’s legal system is confusing. Here are some of the common terms used in the Trump lawsuits
Find our tracker of these lawsuits below, where you can filter cases based on topic, find articles that go more in-depth about the lawsuits or issues at hand, and read more about why these cases matter to California.