RINCETON, NJ -- For the second consecutive Â鶹´«Ã½AV Poll Daily tracking report, Barack Obama holds a statistically significant lead over Hillary Clinton in national Democratic preferences for the nomination, 50% to 43%.
The latest results are based on Â鶹´«Ã½AV Poll Daily tracking conducted March 26-28. Obama's overall lead reflects solid advantages for him on each of the three days.
The last time Obama sustained a significant lead over Clinton for more than one day was in late February and early March, just before Clinton won the Ohio Democratic primary and regained her footing in the race.
The outlook for the general election is identical to what Â鶹´«Ã½AV reported Friday. According to tracking interviews from March 24-28, John McCain holds a small, but statistically significant 4-percentage point lead over Clinton among national registered voters, while his 2-point lead against Obama makes that horserace to close to call. -- Lydia Saad
Survey Methods
Â鶹´«Ã½AV 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 24-28, 2008. For results based on this sample of 4,412 registered voters, the maximum margin of sampling error is ±2 percentage points.
The Democratic nomination results are based on combined data from March 26-28, 2008. For results based on this sample of 1,220 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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