Sen. Bill Cassidy called for a meeting of a Centers for Disease Control and Prevention vaccine advisory committee set for this week to be postponed, citing a lack of experience among its new appointees.

After weeks of staying mostly quiet about Health Secretary Robert F. Kennedy's remaking an influential committee that advises the federal government on vaccinations, U.S. Sen. Bill Cassidy Monday

The call for the delay marks one of the first time Sen. Bill Cassidy has directly asked Trump’s Department of Health and Human Services to alter how it’s handling vaccine policy.