President Joe Biden, James Baldwin at 100, Horseshoe Crabs in Florida

President Joe Biden sits down with CBS News chief election & campaign correspondent Robert Costa for his first interview since announcing his withdrawal from the presidential race; Plus Conor Knighton gazes upon the horseshoe crab; Kelefa Sanneh looks back at the life of legendary James Baldwin, a century after his birth in Harlem; Tracy Smith talks with Carol Burnett and Sutton Foster about the power of fairy tales – from the theatrical kind to real life; And Michelle Miller talks with Zoë Kravitz about her new film, the psychological thriller "Blink Twice," in which she directs her now-fiancé Channing Tatum; and about her attraction to stories of strong women.