Bill Kristol wasn't the only person thinking about dynamic change in presidential primaries yesterday. Dean David Broder wrote this column on the developing fight between Hillary Clinton and Barack Obama. Broder's hook was this 25 September CNN/WMUR poll that's received so much attention. Here's Broder on Clinton:

The same poll that gave her a 2 to 1 lead over Obama and an almost 4 to 1 lead over Edwards found that only 17 percent of New Hampshire voters have a firm choice of a candidate. Fifty-five percent said they are still deciding. Politics, like nature, abhors a vacuum.

So Clinton is not inevitable--which is bad for Clinton. But her lack of inevitability may also pose a problem for someone else: The GOP candidate who is basing much of his candidacy on his ability to defeat Clinton next November.