Politics

Gallup Daily: Obama 49%, McCain 40%

Third day with Obama holding a significant lead over McCain

PRINCETON, NJ -- Barack Obama now leads John McCain among national registered voters by a 49% to 40% margin in Gallup Poll Daily tracking conducted July 24-26.

This represents a continuation of Obama's front-runner position evident in the last three Gallup Poll Daily tracking updates. The margin, coincident with the extensive U.S. news coverage of Obama's foreign tour, is the largest for Obama over McCain measured since Gallup began tracking the general election horserace in March. (To view the complete trend since March 7, 2008, click here.)

A key question remains as to whether this "bounce" is short-term (as happens to bounces in some instances following intense publicity surrounding a convention) or if his lead will persist -- the answer to which will become evident in the next several days. -- 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 July 24-26, 2008. For results based on this sample of 2,692 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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