The latest Gallup tracking poll of Republican voters finds Santorum leading Mitt Romney by eight points.

Over the weekend, Santorum attacked President Obama, and the Obama reelection campaign hit back.

For months, it’s focused its fire on Mitt Romney — believing he will be the Republican nominee. But over the weekend, for the first time, the Obama campaign took direct aim at the new front-runner, Rick Santorum — hitting him hard for something he didn’t really even say.

Campaigning in Ohio, Santorum was criticizing the president’s liberal environmental views, which he said hurt the American people.

“It’s not about you,” Santorum declared. “It’s not about your quality of life. It’s not about your jobs. It’s about some phony ideal. Some phony theology. Oh, not a theology based on the Bible — a different theology.”

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