That means very, very little.
Two weeks ago Obama was beating McCain by more than Clinton. Those numbers fluctuate rapidly. Just wait until there's a week of flap on sniper-gate, and we'll see where Clinton's numbers are.
They don't fluctuate rapidly unless there is a reason for it - hmm - I wonder what that could be?
Head in the sand is saying that people won't forget some other guy saying "God damn America" but will forget Clinton telling blatantly false fish stories about being in a combat zone.
Head in the sand is basing your candidacy on your ability to fight through smears like Monica, Whitewater, Travel Office scandal, Vince Foster, lesbianism, Kazikhstan, and the pardons of 140 friends on the last day of Bill's presidency, and then suggest that your opponent is finished by his relationship with one angry black man who said a few angry things at a government that had oppressed his people for hundreds of years.
