From 20 to 6

What was a 20-point lead for Hillary Clinton over Barack Obama ten days ago is now a 6-point lead, according to Gallup's national daily tracking poll.

20 January:

Clinton 48%
Obama 28%

30 January:

Clinton 42%
Obama 36%

Of course, the usual caveats...primary polling this year is notoriously wrong, there are still 5 days until Super-duper Tuesday, yadda, yadda.

And then, of course, the major question: What will Edwards voters do?