Robert F. Kennedy Jr. has repeated that not enough childhood vaccines have been tested in clinical trials against a placebo.

During his Senate confirmation hearings, Health Secretary Robert F. Kennedy Jr. suggested he wouldn’t undermine vaccines. “I am not going to go into HHS and impose my preordained opinions on anybody at HHS,” he said. “I’m going to empower the scientists at HHS to do their job and make sure that we have good science that is evidence based.”

Kennedy wants to expand the injury compensation program to include COVID-19 vaccines, while also stretching the “statute of limitations” to more than three years.