No, it is a federal case in the US District Court for the District of Northern California, and the referrals go to Pam Bondi’s DOJ.
You seem to have made the mistake of thinking that a news article saying “a judge in northern California" means “a State of California judge in the northern part of that state" rather than “a federal judge in the Northern California District Court”.
You seem to have made the mistake of thinking that a news article saying “a judge in northern California" means “a State of California judge in the northern part of that state" rather than “a federal judge in the Northern California District Court”.