Kennedy managed to allay the concerns of several key GOP senators over his anti-vaccine activism. Mitch McConnell was the lone Republican to vote against him.

Reproductive rights advocate slams RFK Jr. appointment,calls Kennedy "an anti-abortion, anti-science conspiracy theorist."

Robert F. Kennedy Jr. passed a Finance Committee vote 14-13, with Republican Senator Bill Cassidy, who had clashed publicly with the former Democrat, voting to send his name to a full Senate vote.