There’s fresh evidence, from the legislative floor to the voting booths to the halls of academia, that the Clean Money, Clean Elections model of full public financing is making a dramatic difference in the politics of Arizona and Maine. In a year when we are experiencing the first-ever billion-dollar presidential campaign, and fundraising for congressional campaigns is skyrocketing, it’s worth paying attention to the real changes that are possible when you offer candidates an alternative source of “clean” public funding for their races