He's a man who makes even Karl "Durable Majority" Rove look smart. Robert Draper's forthcoming campaign piece apparently has the following nugget:

The decision [to pick Palin] may have been even more impulsive than initially thought. Gov. Sarah Palin, who had never been on the VP shortlist, was advanced at the last minute by Schmidt and Rick Davis, and was picked after a less-than-hour-long chat in with McCain at his ranch in Arizona.

From what I hear, the Palin selection was completely last-second stuff. Utterly unvetted. Utterly reckless. McCain was intent on Lieberman until the very last moment. If you want a commander-in-chief who will make vital decisions at the last minute, on impulse, according purely to polls and electoral tactics, against his own judgment and deferring to Rovian hacks: vote for McCain.

He's George W. Bush, without the prudence and caution.