What kind of impact does Clean Elections have on the participants in our democracy? A big one -- even greater than what we previously knew, thanks to Public Campaign's new study out this week, "All Over the Map: Small Donors Bring Diversity to Arizona's Elections." They looked at the donors in statewide races covered by the state-level Clean Elections program in Arizona and compared them to the donors in federal races for Senate, which have the same statewide electorate but currently have no public funding or Clean Elections option.

The difference is striking: from race and ethnicity to economic and geographic levels, the Clean Elections donors represent a much wider and more representative mix of citizens. Again, the executive summary is here.