Republican Senator Bill Cassidy from Louisiana spoke about concerns regarding RFK Jr. Here's more on Bill Cassidy and his past in the medical field.

Conservatives in Louisiana view the nomination of Robert F. Kennedy Jr. as a litmus test for President Trump's agenda.

BATON ROUGE, La. (AP) — Sen. Bill Cassidy has emerged as a central figure in the confirmation of Robert F. Kennedy Jr., whose nomination to health and human services secretary poses an equally consequential moment for the second-term Republican facing an uncertain political future in Louisiana.