A steep drop in the past couple days for Obama, as he has lost 2 points and McCain has gained 1 each of the last two days. But Rasmussen shows a slight uptick for Obama.

Could registered voters (Gallup’s group) be taking the Georgian conflict more to heart, while likely voters (Rasmussen’s group) don’t consider it to be as important?

Gallup has some thoughts…

The Aug. 12-14 polling shows a slight dip in Obama’s support, which had ranged between 46% and 48% (averaging 47%) in August. McCain has averaged 43% support among registered voters so far in August. Thus, the closer margin seen in today’s results is due more to movement away from Obama than toward McCain. Twelve percent of registered voters now say they are undecided or supporting another candidate, which is on the high end of what Gallup has measured this year.

Voter preferences have been closely divided between Obama and McCain in each of the last three individual nights of polling, underscoring the notion that the race has tightened for the moment. This could to some degree reflect Obama’s absence from the campaign trail while he vacations in Hawaii. He will return to the spotlight over the next few weeks upon naming his vice presidential running mate and accepting his party’s nomination for president at the Democratic national convention, and both events have typically been associated with a bounce in support for a presidential candidate.

More tomorrow…

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