This combination of file pictures shows US Republican presidential candidate Mitt Romney (L) speaking during a campaign rally at Flagler College in St. Augustine, Florida, August 13, 2012, and US President Barack Obama (R) pausing while speaking during a campaign event in Lions Park a September 13, 2012 in Golden, Colorado. AFP PHOTO / Saul LOEB /Brendan SMIALOWSKI-/AFP/GettyImages Photo: -, AFP/Getty Images / AFP