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Gallup Daily: Obama 45%, McCain 42%

Gallup Daily: Obama 45%, McCain 42%

PRINCETON, NJ -- Barack Obama maintains a three percentage point advantage over John McCain in national registered voter preferences for the general election, with a 45% to 42% edge in Gallup Poll Daily tracking interviewing conducted June 10 and 12-13.

Obama's three percentage point advantage remains slightly smaller than his average lead in the days after Hillary Clinton let it be known that she was suspending her campaign on June 4. This suggests that while Obama experienced a small "bounce" from the attention he received, the possibility exists that the bounce will be short-lived and that the race will settle back down to the close margin that has characterized it for much of the last few months. (To view the complete trend since March 7, 2008, click here.)

According to the latest Gallup Poll Daily tracking results, only 87% of registered voters make a choice between the two major party candidates, leaving the rest to volunteer another candidate, say they would support neither of the two candidates, or say they are undecided. -- Frank Newport

Survey Methods

For the Gallup Poll Daily tracking survey, Gallup is interviewing no fewer than 1,000 U.S. adults nationwide each day during 2008.

The general-election results are based on combined data from June 10 and 12-13, 2008. For results based on this sample of 2,691 registered voters, the maximum margin of sampling error is ±2 percentage points.

Interviews are conducted with respondents on land-line telephones (for respondents with a land-line telephone) and cellular phones (for respondents who are cell-phone only).

In addition to sampling error, question wording and practical difficulties in conducting surveys can introduce error or bias into the findings of public opinion polls.

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