Seven Percent

It's worth mentioning that in October 2007, only 7% separated Barack Obama and Hillary Clinton in the dKos reader straw poll. By the end of January, that gap had grown to 65%.

Is that because the Clinton supporters left in droves? No.

The most recent dKos reader poll that I found, from 1/30/2008, was right after John Edwards left the race.

Obama's support went from 41% to 76%. It was only the second time that Edwards did not lead the dKos straw poll dating back to 12/2006 (which was the first poll following former frontrunner Russ Feingold's announcement that he would not run). Obama's low point was in October 2007, when his support dropped to 16%, behind Edwards and Chris Dodd, who at 21% that month received a huge bounce for standing up on FISA.

Clinton's support went from 9% to 11% in the 1/30/2007 poll, a gain of 2%. It has never gone higher than 11%, and has been as low as 3% (using the same 12/2006 endpoint -- though if one goes back farther, it was at 2% in early-mid 2006).

Clinton, her campaign, and/or her supporters failed to win the hearts and minds of dKos readers, plain and simple. It wasn't happening over the course of 2007, and surely it won't happen now, barring some sensational, earth-shattering news about Obama.