It is important at the outset to counter any skeptic's expectation that Paul Gronke is trying to prove that all House races and Senate races are created equal. It is to his credit that he does not try to substantiate such a sweeping generalization. Rather, he very convincingly demonstrates that there is considerable overlap between House and Senate races in terms of competitiveness, intensity, campaign message effectiveness, quality of challengers, and level of voter information. Resisting the urge to engage in hyperbole, let me say that this is a very good book.