How Old is Too Old to Be President?

Louise Aronson, a geriatrician at UCSF and author of the new book “Elderhood: Redefining Aging, Transforming Medicine, Reimagining Life,” talks about whether the top three Democratic candidates and President Trump — all of whom are in their 70s — are too old to be president. Learn more about your ad choices. Visit megaphone.fm/adchoices