Robert F. Kennedy Jr. spent two days this week insisting to senators that he’s not anti-vaccine. He said that he instead supports vaccinations and will follow the science in overseeing the $1.7 trillion Department of Health and Human Services, which, among other duties, oversees vaccine research, approval and recommendations.

Sen. Elizabeth Warren discussed her viral back-and-forth with RFK Jr. on Thursday during an interview on "The View," saying the U.S. could be left with "no vaccines."

During the Senate confirmation hearing for HHS nominee Robert Kennedy Jr., Sen. Bernie Sanders (I-VT) questioned Kennedy’s support for the Children’s Health Defense, an organization that Kennedy chaired,