PRINCETON, NJ -- New Gallup Poll Daily tracking finds Hillary Clinton with a 49% to 42% lead over Barack Obama in national Democratic voters' presidential nomination preference.
This is the first time Clinton has held a statistically significant lead in over a month. She last led Obama in Feb. 7-9 polling, just after the Super Tuesday primaries. Since then, the two candidates have usually been in a statistical tie, but Obama has held a lead in several of the polls, most recently in March 11-13 polling.
Obama's campaign has been plagued by controversial remarks made by his former pastor, Rev. Jeremiah Wright. Obama delivered a major speech on race Tuesday to try to move beyond the controversy. The initial indications are that the speech has not halted Clinton's gaining momentum, as she led by a similar margin in Tuesday night's polling as compared to Monday night's polling.
John McCain may be benefiting in the short-term from the highly charged Democratic race. He holds a statistically significant lead over Obama, 47% to 43%, in registered voters' preferences for the general presidential election. That is the first time any of the candidates has held a statistically significant lead since Gallup Poll Daily tracking began reporting on the general election race last week. McCain's 48% to 45% advantage over Clinton is not statistically significant, but it is the first time he has had an edge over her in Gallup Poll Daily tracking. -- Jeff Jones
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 14-18, 2008. For results based on this sample of 4,376 registered voters, the maximum margin of sampling error is ±2 percentage points.
The Democratic nomination results are based on combined data from March 16-18, 2008. For results based on this sample of 1,209 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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