The politics of meh. Patrick Howley reminds us that it was largely a combination of opportunistic conservative posturing and substandard opponents that enabled the Bush's to win elections (when they won elections).
I've got nothing against the Bush family, personally. H.W., W. and Jeb at least seem to be basically honest, decent men. But they're not fit to lead a revolution, because they either don't grasp the extent to which progressive ideology has undermined our traditional values, or perhaps because, at some fundamental level, they agree with some of the progressive movement's imperatives. We don't need dynasties (whether the name is Bush or Clinton).