How the ghostwriter of Biden’s memoirs ended up in the center of a classified documents probe

President Joe Biden worked so closely with the ghostwriter with whom he is accused of sharing classified secrets that he once declared that he'd trust the author with his life. Mark Zwonitzer worked with Biden on two memoirs, 2007's “Promises to Keep” and “Promise Me, Dad," which was published 10 years later. According to a report released Thursday by special counsel Robert Hur, Biden was sloppy in his handling of classified material found at his home and former office, and shared classified information contained in some of them with Zwonitzer while the two were working on the Biden's second book.