No one commissioned the Iowa Republican gubernatorial primary survey that Public Policy Polling released yesterday, PPP director Tom Jensen said today. Speaking by telephone from North Carolina, Jensen said the firm does most of its polling on its own with no commission. If a candidate or organization does commission one of PPP’s surveys, “we note that in the press release.” PPP has polled primary contests in many states this spring.

Jensen was commenting on speculation by Craig Robinson of the Iowa Republican Blog. In today’s top story at the blog, Robinson tried to make it sound suspicious that a North Carolina-based firm would survey the Iowa governor’s race. He asserted that since PPP has done polls for Congressional Democrats, pro-choice groups and labor unions, the “most likely scenario” for PPP’s new Iowa poll was that the 527 group Iowans for Responsible Government commissioned it. Former Iowa Democratic Party chair Rob Tully created the 527 group, and Robinson claimed the funders are trying to “see how much damage” their direct mail and advertising campaign has done to Terry Branstad. Jensen characterized Robinson’s line of analysis as “just making stuff up” and repeated that no Iowa Democrats commissioned PPP’s latest Iowa poll.

Jensen added that PPP will release general-election matchup numbers for the Iowa governor’s race later today, and for the U.S. Senate race tomorrow. I’ll post those numbers at Bleeding Heartland when they become available.

Yesterday Republican campaign consultant Steve Grubbs, president of Victory Enterprises, told Iowa Independent that PPP’s findings on the Republican gubernatorial primary were “very similar to what he’s seen in internal surveys done by his company.” He added that Vander Plaats will struggle to bring up his name recognition in time for the June 8 primary

“The fact that Branstad is under 50 percent probably gives Vander Plaats a glimmer of hope,” he said. “But our projections are that 18-40 year-old voters will make up about 18 percent of the electorate on June 8. The rest will be older than 40.”

Those numbers are significant, since Branstad has a commanding lead with senior citizens but is tied among voters younger than 45, according to the PPP poll.

I have a post in progress about the Iowans for Responsible Government attacks on Branstad, but for now you can read more about them in the Des Moines Register (also here), the Waterloo Cedar Falls Courier and Iowa Independent.