In this Sept. 14, 2012, photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney campaigns in the rain at Lake Erie College in Painesville, Ohio. President Obama and Romney are embarking on a week heavy with travel through battleground states and appeals key constituencies, with both campaigns wrangling over unrest in the Middle East and who is best equipped to rejuvenate the economy. (AP Photo/Charles Dharapak)

Photo by: Charles Dharapak

In this Sept. 14, 2012, photo, Republican presidential candidate, former Massachusetts Gov. Mitt Romney campaigns in the rain at Lake Erie College in Painesville, Ohio. President Obama and Romney are embarking on a week heavy with travel through battleground states and appeals key constituencies, with both campaigns wrangling over unrest in the Middle East and who is best equipped to rejuvenate the economy. (AP Photo/Charles Dharapak)