ANOTHER ONE FOR THE LIST…. Guess who’s decided he doesn’t like cap and trade anymore.

Mitt Romney took a shot at the Democrats’ climate bill [this week] in a web video launched by his Free and Strong America PAC, Romney’s political fundraising and action group.

“President Obama has asked Congress to pass a cap and trade program. It would have a devastating impact on the families of America and on the economy,” Romney says. […]

Romney’s PAC sent the video out to supporters via email; the page that hosts it contains prominently placed forms to donate and sign up for alerts from Romney.

This wouldn’t be especially interesting, if it weren’t for the fact that Romney, up until fairly recently, thought cap and trade was a fine idea. In fact, in 2005, while Romney was serving his only term in public office, he called cap and trade “a great thing” for his state. Romney added that with a cap and trade policy, ”We can effectively create incentives to help stimulate a sector of the economy and at the same time not kill jobs….. I’m convinced [cap and trade] is good business.”

Now, for those who know anything about Romney, this shouldn’t be surprising. No modern politician has completed more 180-degree turns on more issues than this guy. Andrew Sullivan recently noted, “There’s something quite refreshing about his open refusal to have any principles, or even to worry about the slightest consistency between one statement and the next.”

So, here’s my question: are there any major issues in which Mitt Romney hasn’t flip-flopped? It probably sounds flippant, but I don’t (necessarily) mean it to be. I’m genuinely curious — I’m looking for a single, high-profile policy matter in which Romney has been consistent throughout his limited political career.

Is there literally anything?

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.