PRINCETON, NJ -- Registered voters' preferences for president are evenly split in the first three days of Gallup tracking since last Wednesday's presidential debate. In the three days prior to the debate, Barack Obama had a five-percentage-point edge among registered voters.

Gallup typically reports voter presidential preferences in seven-day rolling averages; the latest such average as of Saturday interviewing shows Obama with an average three-point edge, 49% to 46%, among registered voters. This Sept. 30-Oct. 6 field period includes three days before the Oct. 3 debate, the night of the debate itself, and three days after the debate.

Even on this basis, the race has become somewhat more competitive compared with before the first debate. Obama held four- to six-point leads in Gallup's seven-day tracking results in the eight days prior to the Oct. 3 debate.

Should Mitt Romney's momentum continue in the coming days, that gap in the seven-day rolling average would narrow further.

Romney Posts Historic Win in Debate

An Oct. 4-5 Gallup poll finds roughly two in three Americans reporting that they watched the Oct. 3 debate, similar to what Gallup measured for each of the three 2008 presidential debates. Those who viewed the debate overwhelmingly believe Romney did a better job than Obama, 72% to 20%. Republicans were nearly unanimous in judging Romney the winner. But even Democrats rated Romney as doing a better job than Obama, 49% to 39%.

These assessments are based on interviewing conducted Thursday and Friday after the Wednesday night debate, and may reflect the impact of news stories and media commentary -- which mostly declared Romney as the debate winner -- as well as personal reactions to the debates as they unfolded.

Gallup has assessed opinion on who did better in most past presidential debates; some of these polls were conducted the night of the debate with pre-recruited samples of debate watchers immediately after it concluded, and some were conducted with more general samples of Americans in the days that followed the debate. Across all of the various debate-reaction polls Gallup has conducted, Romney's 52-point win is the largest Gallup has measured. The prior largest margin was 42 points for Bill Clinton over George H.W. Bush in the 1992 town hall debate.

Romney's debate performance is also notable from the standpoint that U.S. debate watchers judged Obama the winner of all three 2008 debates with John McCain.

Implications

The first presidential debate went decidedly in Romney's favor. The debate appears to have affected voters to some degree, given the narrowing of the race in the three days after the debate compared with the three days prior. Still, the impact was not so strong that it changed the race to the point where Romney emerged as the leader among registered voters. Rather, at least in the first three days of Gallup tracking after the debate, the race is tied.

But even that small movement is significant, given the competitiveness of the race throughout this presidential campaign year and the fact that debates rarely transform presidential election races.

However, the generally positive unemployment report released on Friday may serve to blunt some of Romney's post-debate momentum.

In any case, with a month to go before Election Day, the outcome of the 2012 presidential election is still very much in doubt. That certainly raises the stakes for both candidates in the next two debates, Oct. 16 in Hempstead, N.Y., and Oct. 22 in Boca Raton, Fla.

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