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. (To see survey question wording, click here.)

This Pennsylvania survey of 750 Likely Republican Primary Voters was conducted on April 4, 2012 by Rasmussen Reports. The margin of sampling error is +/- 4 percentage points with a 95% level of confidence. Field work for all Rasmussen Reports surveys is conducted by Pulse Opinion Research, LLC. See methodology.