Just published on their website, the DesMoines Register states:
Iowans are feeling more optimistic about where the nation is headed, and they’re giving President Barack Obama the credit.
Obama is up 5 percentage points in Iowa, leading Republican Mitt Romney 47 percent to 42 percent, according to a new Des Moines Register Iowa Poll...
It is still clear that the economy is Romney's strong point but even here Obama gets a slight edge.
Democratic pollster Margie Omero said: “If Romney can’t catch up here, he probably can’t catch up elsewhere. Without Iowa and Ohio, Romney’s path to victory is incredibly narrow.
Margin of error +/- 3.5