Many in the GOP realize that Ron Paul is not going to fade away once the early primaries are over. If Ron Paul doesn't win the primary battle, they'll need his voters to win in the general election.
Jon Huntsman bet his campaign on the New Hampshire primary results, but finished a distant third. The only subset of voters he won was Democrats, hardly a base upon which to build a winning run for the GOP nomination.
The Ron Paul campaign is seeking to characterize the race as between the Texas libertarian and Mitt Romney, and it's arguing that the rest of the candidates are fading into the background.
Appearances by Ron Paul over the past several days in New Hampshire have been jammed, to the point where one crucial stop degenerated into chaos.