COLUMBIA, South Carolina (Reuters) - Democrat Barack Obama expanded his lead on rival Hillary Clinton to 15 points heading into South Carolina's bitterly contested presidential primary, according to a Reuters/C-SPAN/Zogby poll released on Saturday.
Obama, an Illinois senator, gained two points on Clinton overnight to lead 41 percent to 26 percent just hours before voting began in Saturday's primary. John Edwards was in third place after slipping two points to 19 percent.
http://www.reuters.com/...
Polls have shown a good bit of variation in the closing days, impacted significantly by the demographics measured. Still, any poll not showing a solid lead appears to be an outlier. Nonetheless, NH polls did not reflect the late movement and the race still appears to have significant fluidity.
It looks like Obama holds on, and an Edwards second place finish seems unlikely, but possible.
UPDATE: More from Zogby's site...
While previous tracking polls have included three days of polling, this final release from South Carolina includes survey interviews conducted just on Thursday, Jan. 24, and Friday, Jan. 25, 2008. This latest telephone tracking survey included 816 interviews with likely Democratic voters and carries a margin of error of +/- 3.4 percentage points.
The race is closest in the largest cities of the state, but Obama still leads there - and enjoys wider leads in the suburbs and rural areas of the state. He also enjoys solid support across ideological lines, leading among progressives, liberals, and moderates alike.
http://zogby.com/...
The wild card-- 10% unsure.