Wobbled by Wealth?

At just about every stop I've made so far on my book tour, what I've come to think of as The Question comes up. I talk about the origins of the long right-wing dominance of American politics, and the reasons I believe that dominance is coming to an end. Then someone asks, "How can you be optimistic about the prospects for progressive change, when big money has so much influence on politics?"

It's a good question.