Former U.S. Senator Rick Santorum holds a four-point lead in his home state in Rasmussen Reports’ first look at the upcoming Pennsylvania Republican Primary. A new statewide telephone survey finds that 42% of Likely GOP Primary Voters support Santorum, while former Massachusetts Governor Mitt Romney picks up 38% of the vote. Texas Congressman Ron Paul earns seven percent (7%), and former House Speaker Newt Gingrich is at six percent (6%). Two percent (2%) like some other candidate in the race, and five percent (5%) are undecided.