Her once-commanding advantage over Obama in Iowa and New Hampshire -- the two critical initial contests -- is evaporating. She has gotten the worst of recent exchanges over Iran and health care.
There are also political strains with her greatest asset and surrogate, Bill Clinton. The former president was quoted last month as saying he had really opposed the invasion of Iraq from the beginning; he later claimed he was misquoted.
Top Clinton campaign officials were privately furious at the former president, saying he had revived the complaint that the Clintons lack credibility, unfairly tarnishing his wife in the process.
For his part, the former president, one close associate says, has been bouncing off the walls at the campaign's ineptitude in the past few weeks. (It is not known if the Clintons shared any of these sentiments with each other).
The anxiety being felt by Bill Clinton, America's most skillful politician, is understandable. Hillary's campaign is off-balance.