Sure it sounds like one and it looks like one, but everyone knows Sarah Palin's tour of East Coast historic sites had absolutely nothing to do with a potential presidential run. Sometimes a lady just likes to visit landmarks in a bus emblazoned with the Constitution and a pack of reporters in tow!
On the SarahPAC website, Palin says:
Not surprising, some members of the media missed a lot of this [patriotism and such] due to their relentless and futile search for scuttlebutt. So, we assembled this video to capture the amazing Americana spirit of the places and people we visited. I invite you to enjoy this recap of last week's east coast bus tour.
You just can't trust the "lamestream" media, so it's a good thing Palin's people cobbled together this recap, which consists almost entirely of clips from major news networks.