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Gallup Daily: Election Preferences Are Stable

Gallup Daily: Election Preferences Are Stable

PRINCETON, NJ -- National registered voters' preferences for the general election remain closely divided between Democrat Barack Obama (46%) and Republican John McCain (44%).

Gallup Poll Daily tracking for June 19-21 shows the same results Gallup reported the prior two days, with Obama holding a slight, but not statistically significant, advantage over McCain.

Obama has not trailed McCain by any margin in the last 15 Gallup Poll Daily reports (beginning with June 1-5 polling), but has only held a statistically significant advantage in less than half of these (six out of 15). His lead during this time has been as large as seven percentage points. (To view the complete trend since March 7, 2008, click here.) -- Jeff Jones

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 19-21, 2008. For results based on this sample of 2,615 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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