His brazen and transparent attacks on a leader of his own party, Texas Gov. Rick Perry, may be the greatest test yet of Rove’s remarkable resilience. Some, in fact, are starting to question if we have at last reached “the moment.” Years from now, will we look back at the 2012 primary season as the time when Rove put on his Fonzie jacket, flashed a thumbs-up sign, and then—finally—jumped the shark?…

The origins of the Rove grudge against Perry really matter only to a handful of people. Suffice it to say it stems from some decade-old feud over power and money. And Rove has lassoed the entire Bush family in on it. The former presidents Bush have made it a great point not to comment on the actions of their successors—Clinton and Obama, respectively. They think there is a nobility to staying out of the fray and not making things more difficult for the next commander in chief. Yet the Bushes have shown no compunction about doing just that to a fellow Republican and fellow Texan (though Perry is the only one of them actually born in the state)…

The Bushes are usually more cautious than this, which means they must feel they have no other choice. A Perry victory would end whatever chokehold the Bushes still have on the GOP establishment. It would cut off many donors to Rove, Inc. Worse yet, Karl Rove and his compatriots simply cannot fathom the idea of having to sit on Fox News for four years defending the policies of the man who dared to cross them.