In this photo taken Monday, April 23, 2012, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at Consol Energy Research and Development Facility in South Park Township, Pa. (AP Photo/Jae C. Hong)

Photo by: Jae C. Hong

In this photo taken Monday, April 23, 2012, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks at Consol Energy Research and Development Facility in South Park Township, Pa. (AP Photo/Jae C. Hong)