Governor Rick Perry of Texas is being attacked by two rivals in the GOP presidential race. His sin, if you can believe it, is that he told the truth (as acknowledged by everyone from Paul Krugman to Milton Friedman) about Social Security being a Ponzi scheme.

Here’s an excerpt from Philip Klein’s column in the Examiner, looking at how Mitt Romney is criticizing Perry.

Mitt Romney doubled down on his attack against Texas Gov. Rick Perry this afternoon, warning in an interview with Sean Hannity that his critique of Social Security amounted to “terrible politics” that would cost Republicans the election. Romney’s decision to pile on suggests that he’s willing to play the “granny card” against Perry if it will help him get elected, a tactic more becoming of the likes of DNC chairwoman Debbie Wasserman Schultz than a potential Republican nominee.

And here’s a Byron York column from the Examiner looking at how Michele Bachmann is taking the same approach.

…another Republican rival, Michele Bachmann, is preparing to hit Perry on the same issue. “Bernie Madoff deals with Ponzi schemes, not the grandparents of America,” says a Bachmann adviser. “Clearly she feels differently about the value of Social Security than Gov. Perry does. She believes Social Security needs to be saved, that it’s an important safety net for Americans who have paid into it all their lives.” … “She strongly disagrees with his position on that…”

Shame on Romney and Bachmann. With an inflation-adjusted long-run shortfall of about $28 trillion, Social Security is a Ponzi scheme on steroids.

But as I explain in this video, that’s just part of the problem. The program also is a terrible deal for workers, particularly young people and minorities.

Here’s what’s so frustrating. Romney and Bachmann almost certainly understand that Social Security is actuarially bankrupt. And they probably realize that personal retirement accounts are the only long-run answer.

But they’re letting political ambition lure them into saying things that they know are not true. Why? Because they think Perry will lose votes and they can improve their respective chances of getting the GOP nomination.

Sounds like a smart approach, assuming truth and morality don’t matter.

But here’s what’s so ironic. The Romney and Bachmann strategy is only astute if Social Security is sacrosanct and personal accounts are political poison.

But as I noted last year, the American public supports personal accounts by a hefty margin. And former President Bush won two elections while supporting Social Security reform. And election-day polls confirmed that voters supported personal accounts.

I’m not a political scientist, so maybe something has changed, but I wouldn’t be surprised if Perry benefited from the left-wing demagoguery being utilized by Romney and Bachmann.

P.S. This does not mean Perry has the right answer. As far as I know, he hasn’t endorsed personal accounts. But at least he’s telling the truth about Social Security being unsustainable.