A new documentary about Arizona Sen. John McCain premiered on Memorial Day on HBO.

"John McCain: For Whom The Bell Tolls" is a profile of the 81-year-old McCain. It includes interviews with family, friends, political opponents and McCain himself.

The film’s title is a reference to McCain’s favorite book.

Peter Kunhardt joined The Show to talk about the film. Kunhardt, along with his sons, Teddy and George, directed and produced the documentary.