The graph comes from Michael Miller (UIS political science professor), and it shows the difference that clean-election funding of the sort you see in Arizona and Maine makes in campaigns.
The context for Miller’s post is that the Supreme Court is considering a case that could wipe out clean-election programs all across the country. The specific charge being brought against the policy is that it unfairly restricts candidate speech because it increases funding to clean-election candidates when their opponents spend enormous sums against them. How does this restrict speech?
Miller's work was spotlighted in Ezra Klein's Washington Post blog on March 23, 2011.
Read the blog online