Editor's note: Watch our political panel weigh in on Palin here.
(CNN) - Former Alaska Gov. Sarah Palin is once again at the center of the political stage tonight.
Palin is in the midst of a rather mysterious East Coast bus tour that some political observers are interpreting as a trial balloon for a 2012 presidential campaign. The 2008 Republican vice presidential nominee is keeping details of her trip largely under wraps, with crowds forming simply based on speculation of where and when she might appear.
Related on the CNN Political Ticker: Crowds wait and wait and wait for Palin
Palin says she’s not on a campaign trip. Is that believable?
Tune in to AC360° tonight at 10pm ET for some Raw Politics about Palin and the 2012 GOP field.
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