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.

Senator Bill Cassidy (R-LA) blew past CNN's Manu Raju who tried to ask him about his "yes" vote on Robert F. Kennedy Jr. for Health and Human Services Secretary. "I don't know if you just caught that,

The fate of Robert F. Kennedy Jr.’s bid to run HHS may rest with a Republican wrestling with his training as a physician and his instincts as a politician.