Earlier this week I wrote about a Survey USA poll taken June 15, which showed Governor Chet Culver’s approval rating at 42 percent. That was the same approval number that SUSA found for Culver in its April poll. However, I did not realize that SUSA also conducted a poll in late May, which showed somewhat better numbers for Culver: 48 approve, 47 disapprove.

Probably this is just statistical noise, and Culver’s support is somewhere in the 40s. Alternatively, if you have some hypothesis that would explain why the governor’s support rose in May but dropped by mid-June, please post a comment.

Click here to see all of SUSA’s approval numbers for Culver since he became governor.

It would be nice if some other polling firm released a new Iowa survey soon.