I suspect most GOP candidates now would rather run against Hitlery given she is getting arrowed each and every day in the media. Once the media signaled they were tossing in the towel on her, she is dead in the water. I expect the media to being trumpeting a challenge from either Biden or Lurch or ABC (anyone but clinton).
An often fatal mistake made over and over again by countless sports teams that prematurely pull back against a perceived weaker competitor only to get beaten by them in the winner take all playoffs.