AdvertisementAt Koch Summit, A Freewheeling Debate Among GOP HopefulsJanuary 26, 2015Peter OverbyfacebookEmailSen. Rand Paul, R-Ky., center, meets with members of the Londonderry Fish and Game Club in Litchfield, N.H., on Jan. 14. Paul was one of three GOP presidential hopefuls who attended Sunday's semiannual gathering of David and Charles Koch's donor network in California. (AP)