The latest Des Moines Register “Iowa Poll” on Iowa’s governor’s race shows incumbent Republican Terry Branstad still holds a double-digit lead, but Branstad’s job approval rating has also dropped by double-digits. The poll found Branstad at 48 percent, while Democratic challenger Jack Hatch had 34 percent support. Hatch was also unknown by 29 percent of those polled last week.

Branstad had a 63 percent job approval rating in February. It’s 51 percent now. Ten percent of those surveyed said they were undecided in this race. The remaining eight percent were split among other candidates and the option of “none of the above.”

Pollsters asked about recent statehouse controversies and tested how much voters knew about the attacks made in negative campaign ads. Here’s The Register’s story about their poll and here’s the page of results.

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