Republican Sen. Bill Cassidy of Louisiana, a former physician who has spent his career touting the safety of vaccines, will ...

Senator Bill Cassidy (R-LA) spoke on the Senate floor to explain his vote in favor of Robert F. Kennedy Jr.’s nomination to ...

Senator Bill Cassidy (R-LA) blew past CNN's Manu Raju who tried to ask him about his "yes" vote on Robert F. Kennedy Jr. for ...

The Louisiana Republican, who led a hepatitis B vaccination campaign before entering politics, has expressed concerns about ...