Indiana's Treasurer Richard Mourdock beat veteran Republican Senator Richard Lugar in a contentious primary battle earlier this year. Mourdock was the darling of Tea Party activists. But it turns out that Lugar was the darling of the general electorate. Now polls have the race as a toss up. Sensing the possibility of picking up a Republican Senate seat, outside money is starting to pour into Indiana to aid Representative Joe Donnelly, the Democratic nominee.