California Planning to Sue Trump Admin Over Revised Child Vaccine Guidelines, Bonta Says

Connecticut Attorney General William Tong indicated his state may join California in the filing.

A man holds his 14-month-old son while he gets the MMR vaccine at a clinic in Lubbock, Texas, on March 1, 2025. Jan Sonnenmair/Getty Images

California Attorney General Rob Bonta said on Feb. 17 that the state plans to take legal action against the Trump administration over the recent modifications to the childhood vaccine schedule.

The CDC on Jan. 5, with backing from Health Secretary Robert F. Kennedy Jr., narrowed the number of vaccines routinely recommended by the childhood schedule.