The age-old question about old age in Washington

Senate Minority Leader Mitch McConnell's alarming health episode last week has just added to a debate over age that’s already dominating the campaign trail. The incident prompted both candidates and voters to again ask: How old is too old to serve as an elected official -- let alone to serve in the White House? BRITTANY SHEPHERD, ABC NEWS NATIONAL POLITICS REPORTER, WASHINGTON. Dave and Debbie take listener calls. See omnystudio.com/listener for privacy information.