In it, but not of it. TPM DC

Palin Headed To Madison, Wisconsin This Weekend

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Newscom

Palin's presence could provide useful measure of activist motivation on each side at this point in the saga. Back in February, a pro-Walker Tea Party rally at the Capitol featured an all-star cast that included Andrew Breitbart and Joe "The Plumber" Wurzelbacher.

However, out of the tens of thousands who showed up that day, only a few thousand were on the pro-Walker side -- with several times more demonstrators on the other.