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President Barack Obama, accompanied by first lady Michelle Obama, speaks during Kids' "State Dinner," hosted by Mrs. Obama, Monday, Aug. 20, 2012, in the East Room of the White House in Washington (AP Photo/Carolyn Kaster)

President Barack Obama, accompanied by first lady Michelle Obama, speaks during Kids' "State Dinner," hosted by Mrs. Obama, Monday, Aug. 20, 2012, in the East Room of the White House in Washington (AP Photo/Carolyn Kaster)

Candidates' wives

Ann Romney's popularity has jumped since April as her national exposure

has increased, but Michelle Obama maintains a clear advantage in the

battle of the spouses - with both women rated more favorably than their

campaign-scarred husbands.