PRINCETON, NJ -- Gallup Poll Daily election tracking from March 14-16 finds Hillary Clinton's bid for the 2008 Democratic nomination supported by 47% of national Democratic voters, and Barack Obama's candidacy favored by 45%.
Obama led Clinton in all Gallup Poll Daily tracking reports from March 9 through March 16, indicating he had a real, albeit slim, advantage in national Democratic preferences over this period. While not statistically significant, Clinton's two percentage point advantage in today's report is a notable shift, particularly in light of the political storm Obama has faced over the past few days concerning controversial political statements made by the former pastor of his Chicago church.
Both Democrats run roughly even with John McCain in hypothetical trial heats for the fall election. But for the second consecutive Gallup report, McCain does slightly better against Obama than he does against Clinton. From March 12 through March 15, the two Democratic candidates' positions against McCain had been identical in Gallup Poll Daily tracking. -- Lydia Saad
Methodology: 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 March 12-16, 2008. For results based on this sample of 4,390 registered voters, the maximum margin of sampling error is ±2 percentage points.
The Democratic nomination results are based on combined data from March 14-16, 2008. For results based on this sample of 1,239 Democratic and Democratic-leaning voters, the maximum margin of sampling error is ±3 percentage points.
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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