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A super PAC backing Rick Santorum is stepping up pressure to force Newt Gingrich to drop out of the GOP presidential race. The Red White and Blue fund is spending about half a million dollars in Alabama and Mississippi—states that Gingrich said are must-wins. It’s called on Gingrich to drop out, but the former House speaker has said he won’t. Santorum himself isn’t getting his hands dirty. “I’m not saying I don’t want him to get out,” Santorum said Wednesday. “If he wants to get out, I’m all for him getting out. I’m for Mitt Romney getting out. I wish President Obama would just hand me the thing, but that’s not going to happen.” Seems a good strategy to take, since pestering Gingrich to drop out now might not help Santorum get his endorsement, which could mean a lot more.