TAMPA, Fla. (AP) — Rick Santorum was one of Mitt Romney’s toughest foes during the GOP presidential race, but the former Pennsylvania senator plans to help Romney appeal to the party’s conservative base when he addresses the Republican National Convention.

His speech Tuesday is expected to focus on welfare reform and charges that President Barack Obama wants to undermine welfare work requirements.

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Photo Credit: Gage Skidmore (Creative Commons)

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