Prompt

Bob, a prominent state politician with aspirations to federal office, confides his marital infidelity to his friend Maurice, asking him to keep the matter secret since its disclosure could harm his election chances. Five years later, when Bob is a candidate for national office, Maurice decides that fame and money are preferable to friendship and signs a lucrative book deal with Seedy Press to write a book about Bob's extra-marital affair. Bob, furious at his friend's infidelity to him, sues Maurice for the tort of Libel.

What will he need to prove to prevail over Maurice? Will he prevail? What other tort should Bob sue Maurice under?