*More people in the United States than ever are breaking away from the political duopoly by refusing to self-identify as either Democrat or Republican -- and they now effectively comprise the true silent majority: Independents.* According to a Gallup poll released Monday, for 2015, just 29% of respondents call themselves Democrats, while 26% identify as Republicans -- but fully 42% say 'nay' to both parties and claim to be Independents, down only marginally from 43% last year. Indeed, Independents as a group reached 40% of the population for the first time in 2011, and have comprised at least that percentage...