This is probably the most read and reliable of Iowa blogs:
http://www.bleedingheartland.com/diary/4012/sarah-palin-just-made-a-big-mistakeSarah Palin just made a big mistake
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Vander Plaats campaign manager Eric Woolson told the Des Moines Register,
"I think that she's seriously damaged her 2012 presidential prospects," <...> "This says to me she's either not running for president or she doesn't understand Iowa very well because she has just alienated herself from her natural base. If you look at her Facebook page, all of the comments are saying 'Terry Branstad? Really?'"
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Let's look at how various outcomes in the governor's race would affect Palin.
If Branstad wins the primary easily, Palin will not get credit, because she didn't do much for him.
If Branstad wins the primary narrowly, many social conservatives will be angry that she helped him even in a small way.
If Vander Plaats surprises us all and wins the primary, everyone will know that Palin's endorsement carries no weight with social conservatives. Even Branstad supporter Craig Robinson admits, "if Vander Plaats pulls off an upset next Tuesday, a potential caucus campaign would become exponentially more difficult
."
No matter what happens in the primary, Republicans who voted for Vander Plaats or Roberts will remember that Palin did the politically expedient thing instead of standing up for the principles she outlined in her own book.