http://www.bostonglobe.com - A few months after the last presidential election, at a forum at Harvard’s Institute of Politics, a group of seasoned political consultants were discussing what makes a good candidate -- someone voters will respond to and connect with. The answer, one of them said, was “authenticity.” This isn’t necessarily a trait that voters -- or campaigns -- would name. Candidates like to pitch themselves as people with grand passions, brilliant ideas, noble backstories, or all-American values. (Not all necessarily at the same time, but hey, we can’t have everything.) But this different and slightly-subversive idea -- that voters want, most of all, to know precisely what they’re getting -- goes a long way toward explaining why there’s hope for Anthony Weiner and Eliot Spitzer.