It's become conventional wisdom that President Obama's new lead in the polls is a bounce, coming out of the Democratic convention in Charlotte, N.C.
But an analysis from the Wesleyan Media Project suggests that the bounce might be due to TV ads as much as grand speeches. The Obama campaign and its allies laid out $21.1 million for TV during the two weeks of the party conventions. Over that same stretch, Republican Mitt Romney and his backers spent significantly less, $12