FILE - In this July 31, 2008 file photo, then-Democratic presidential candidate Sen. Barack Obama, D-Ill. , second from left, talks with Iowa flood victims at the National Czech & Slovak Museum & Library in Cedar Rapids, Iowa. From left are, Paul Morris, Robin Morris, Sen. Obama and Katherine Marcano. The museum was also damaged by the flood in June. Obama's trip to the state that launched him toward the White House is being billed as a return visit. But in fact he never really left. In Iowa, there are signs everywhere of the organization he's building for his re-election campaign in 2012. AP Photo logo AP Photo 7 months ago

FILE - In this July 31, 2008 file photo, then-Democratic presidential candidate Sen. Barack Obama, D-Ill. , second from left, talks with Iowa flood victims at the National Czech & Slovak Museum & Library in Cedar Rapids, Iowa. From left are, Paul Morris, Robin Morris, Sen. Obama and Katherine Marcano. The museum was also damaged by the flood in June. Obama's trip to the state that launched him toward the White House is being billed as a return visit. But in fact he never really left. In Iowa, there are signs everywhere of the organization he's building for his re-election campaign in 2012.