Republican presidential hopeful former Massachusetts Gov. Mitt Romney talks about his plan for creating jobs and improving the economy during a speech Tuesday, Sept. 6, 2011, in Las Vegas, at McCandless International Trucks. (AP Photo/Julie Jacobson)

Photo by: Julie Jacobson

Republican presidential hopeful former Massachusetts Gov. Mitt Romney talks about his plan for creating jobs and improving the economy during a speech Tuesday, Sept. 6, 2011, in Las Vegas, at McCandless International Trucks. (AP Photo/Julie Jacobson)