She did a tour of Northeast colleges, including Bowdoin College and Weber State University. Though she insisted she was participating of her own volition, more than a few commentators thought her sudden inclusion represented a strategic decision on the part of the campaign's top brass.

One broadcaster, in early February, went so far as to claim that Chelsea was being exploited for her mother's sake; 'pimped out' were his exact words.

Image: Chelsea Clinton with a local resident as her mother campaigns door-to-door in Manchester, New Hampshire.

Photograph:Stan Honda/AFP/Getty Images