Health chief nominee Robert F. Kennedy Jr. wouldn’t deny his long-held skepticism about vaccinations, but he agreed not to discourage parents from vaccinating their children — and that

Cassidy is expected to challenge RFK Jr. on his vaccine skepticism and views on public health in today's confirmation hearing.

Republican Sen. Bill Cassidy of Louisiana, a former physician who has spent his career touting the safety of vaccines, will likely determine whether Robert F. Kennedy Jr., a vaccine skeptic, becomes the country’s next Health and Human Services secretary.