Hosted by Jane Pauley. In our cover story, Norah O’Donnell sits down with Vice President Kamala Harris in the final days of her campaign for the White House. Plus: Tracy Smith interviews music superstar Stevie Nicks; Martha Teichner profiles actor Ralph Fiennes, who is starring in two new films, “Conclave” and “The Return”; Lee Cowan visits Eagle Pass, Texas, a border town proud of its bi-national and bi-cultural traditions, but which is now a flashpoint in the debate over immigration; David Pogue talks with filmmaker Ken Burns about his new PBS documentary series on Leonardo da Vinci; Jon Wertheim profiles “Mr. Baseball,” Milwaukee Brewers’ play-by-play announcer Bob Uecker; and Seth Doane meets British designer Adrian Fisher, a master of creating mazes.