There's one main rule at the conservative donor conclaves held twice a year by Charles and David Koch at luxury resorts: What happens there, stays there. The billionaire industrialists and their political operatives strive to ensure the anonymity of the wealthy conservatives who fund their sprawling political operation—which funneled more than $400 million into the 2012 elections—and to keep their plans private. Attendees of these summits are warned that the seminars, where the Kochs and their allies hatch strategies for electing Republicans and advancing conservative initiatives on the state and national levels, are strictly confidential; they are cautioned to keep a close eye on their meeting notes and materials. But last week, following the Kochs' first donor gathering of 2014, one attendee left behind a sensitive document at the Renaissance Esmeralda resort outside of Palm Springs, California, where the Kochs and their comrades had spent three days focused on winning the 2014 midterm elections and more.