Surging diesel prices loom over Republicans in Iowa's midterm races

It's been more than a decade since Iowa has had a Democratic governor or senator. But this year, with the incumbents retiring, both races are competitive. As Peter Tubbs at Iowa PBS reports, record-high diesel prices have hit the state's agriculture industry particularly hard and could influence the midterm elections.

It's been more than a decade since Iowa has had a Democratic governor or senator. But this year, with the incumbents retiring, both races are competitive. As Peter Tubbs at Iowa PBS reports, record-high diesel prices have hit the state's agriculture industry particularly hard and could influence the midterm elections.