President Donald Trump warned on Thursday that any California school district failing to follow his administration’s transgender policies will be denied federal funding, escalating a months-long campaign to curtail what the White House calls “radical gender ideology” in K-12 education. The statement coincided with the U.S. Department of Health and Human Services’ decision to terminate California’s Personal Responsibility Education Program grant after the state refused to strip references to gender identity from its sex-education curriculum. The department’s Administration for Children and Families said the move places up to $12.3 million in federal support at risk and gave the California Department of Public Health 30 days to appeal. California officials did not immediately comment. While most K-12 revenue comes from state and local sources, the threatened cuts would hit targeted programs aimed at preventing teen pregnancy and sexually transmitted infections. Trump’s directive follows a July Justice Department lawsuit challenging California’s policy that lets transgender athletes compete in girls’ sports, underscoring the administration’s broader effort to remake school policies on gender and diversity.