I'm astonished that the author claims that Bush is not an ideologue. His two terms have been rife with ideology: an obsession with tax cuts as the cure to any economic problem and exporting democracy as a cure to any political problem, to name just two. "You're with us or you're against us" is not pragmatism; it's a black-white distinction without regard for the nuances that pragmatism requires.
To me, the mark of an ideologue is that when facts conflict with the ideology, it's the facts that get rejected. It's well documented that when officials came to Bush to give him bad
news on Iraq, he regularly dismissed them as being pessimists. If science got in the way of policy, the science was suppressed. If inspectors weren't finding WMDs in Iraq, it must be because Saddam had hidden them so well, not because they really weren't there.
Yes, Bush ran as pragmatist in 2000. But I see no evidence that he has acted like one. This White House seems to me to be the most ideological in modern political history.