Robert F. Kennedy Jr., one of the most famous vaccine skeptics in the U.S., tried to distance himself from his decades of anti-vaccine sentiment during his Jan. 29 hearing to be confirmed as secretary of the U.S. Department of Health and Human Services (HHS). If confirmed, Kennedy would oversee agencies including the Centers for Disease Control and Prevention (CDC), the Food and Drug Administration (FDA), and the National Institutes of Health.

“News reports have claimed that I am anti-vaccine or anti-industry. I am neither. I am pro-safety,” Kennedy said in his opening statement before the Senate Committee on Finance, prompting a protester to shout, “He lies!” Kennedy added that all of his children are vaccinated—a decision he has previously said he regrets—and said vaccines “play a critical role in health care.”

Some Republican senators accepted Kennedy’s pro-vaccine comments at the hearing. But many senators—including Oregon’s Ron Wyden, a Democrat—pressed Kennedy on discrepancies between his past public statements—in which he has repeatedly questioned the safety and necessity of vaccines and said they are linked to autism and chronic diseases—and his sanitized comments during the hearing. “Mr. Kennedy, all of these