Soil erosion after five inches or more of rain fell in one hour across portions of Western Iowa in 2013. USDA Natural Resources Conservation hide caption

itoggle caption USDA Natural Resources Conservation

Iowa Supreme Court Justice David Wiggins, right, faces a retention vote Nov. 6. Charlie Neibergall/AP hide caption

itoggle caption Charlie Neibergall/AP

Rep. Paul Ryan, who has been chosen by Mitt Romney to be his running mate on the GOP ticket, greeting supporters Sunday in his home state of Wisconsin. Ryan will be in Iowa today. Saul Loeb/AFP/Getty Images hide caption

itoggle caption Saul Loeb/AFP/Getty Images

President Obama meets with Jason and Ali McLaughlin and their son, Cooper, while visiting their home in Cedar Rapids, Iowa. Susan Walsh/AP hide caption

itoggle caption Susan Walsh/AP

President Obama tours Conveyor Engineering and Manufacturing in Cedar Rapids, Iowa, on Wednesday. Jewel Samad/AFP/Getty Images hide caption

itoggle caption Jewel Samad/AFP/Getty Images