Mitt Romney had Michigan, Newt Gingrich had Georgia, and now Rick Santorum is hoping Pennsylvania can provide the hometown boost to help justify staying in the Republican presidential race.

Unlike his opponents, Santorum will be able to cast a vote for himself in his “home” state, despite having not really lived there for years.

Both Romney and Gingrich placed a high priority on winning their home turf, and Pennsylvania’s April 24 contest has become critical for Santorum as Romney has racked up endorsements and a lead in polls in advance of Tuesday’s Wisconsin primary.

Santorum has been critical of Romney — a former Massachussets governor who also has a home in California — for having several “home states.”

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