Republican Louisiana Senator Bill Cassidy cast the swing vote on advancing President Trump's nomination of RFK Jr. to lead the Department of Health.

The series about President Johnson airs on CNN Sunday, February 20, with back-to-back episodes at 9 p.m. and 10 p.m. ET and Monday, February 21, at 9 p.m. and 10 p.m. ET. He changed the term ...