Primary preview: Santorum on Romney, cap and trade

Here’s the visual: Mitt Romney is armed and tearing through an empty warehouse, firing on his target, Rick Santorum.

It’s not the real Mitt Romney; it’s a look-alike. Santorum is a cardboard cutout, and the ammo in the gun is mud.

The Santorum campaign ad, “Rombo,” has been on the air in Michigan ahead of the state’s presidential primary. Its message: Romney is attacking his rivals to mask his own record.

“Romney and his super PAC have spent a staggering $20 million brutally attacking fellow Republicans. Why? Because Romney’s trying to hide from his big government Romneycare and his support for job-killing cap and trade.”

With Ohio’s primary less than two weeks away, it’s an ad voters in the Buckeye State may also be seeing. We took a look at a claim in the ad — that Romney supports cap-and-trade legislation to fight pollution — and rated it False.