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.

Hassan sits on both the Senate health and finance committees, two GOP-steered bodies that must vote to send Kennedy’s nomination to the full Senate floor for confirmation. Kennedy met with the New Hampshire senator earlier this month in an effort to court her vote, per Politico.