https://www.siliconvalley.com/2021/01/25/californias-bill-for-fighting-trump-in-court-totals-41-million/

California has spent $41 million in the past four years fighting the Trump administration over its regulations and rollbacks involving climate change, immigration, consumer rights and more.

During Donald Trump’s presidency, California Attorney General Xavier Becerra filed lawsuit after lawsuit, challenging the various federal agencies that set new national policies.