Cassidy is expected to challenge RFK Jr. on his vaccine skepticism and views on public health in today's confirmation hearing.

While Democrats blasted Robert F. Kennedy Jr. for previous comments on vaccines and some Republicans teed him up for stump speeches, Sen. Bill Cassidy of Louisiana mostly stuck

Robert F. Kennedy Jr.’s anti-vaccine advocacy is outside the mainstream. His previous statements on abortion could alienate Republicans. But a new poll finds that not all of his controversial health goals are unpopular — in fact,