Today marks their 40th wedding anniversary of actress Marlo Thomas and daytime talk trailblazer Phil Donahue - the couple joined us from their home to talk about their new book what makes a marriage last.
It features reflections from celebrity couples including Ron and Cheryl Howard, Kira Sedgwick and Kevin Bacon, Jimmy and Rosalyn Carter, and Jane Wagner and Lily Tomlin just to name a few.
What makes a marriage last? Well, to unlock that mystery Marlo and Phil crisscrossed the country and conducted intimate conversations with 40 celebrated couples whose long marriages they've admired - from award winning actors, athletes, and newsmakers to writers, comedians, musicians, a former US President and First Lady - through these conversations Marlo and Phil also reveal the rich journey of their own marriage.
