Where should the multi-billionaire focus his charitable efforts? Before the Tesla CEO’s battle over Twitter, another fight broke out over how his charitable giving should be managed. Ex-professional gambler Igor Kurganov became a top Musk adviser on giving his fortune away. His wealth manager Jared Birchall, a key player in financing the bid for Twitter, wanted him out. Rob Copeland investigates the facts behind this huge behind-scenes fight in Musk’s inner circle.