Article Photos: Analysis: Romney sharpens differences with Obama



President Barack Obama arrives at JFK International Airport in New York, Tuesday, Sept. 18, 2012, on his way to a visit in New York City to attend several fundraiser events. (AP Photo/David Karp)

President Barack Obama arrives at JFK International Airport in New York, Tuesday, Sept. 18, 2012, on his way to a visit in New York City to attend several fundraiser events. (AP Photo/David Karp)