Obama leads nationally by eight points

PRINCETON, N.J., Oct. 6 (UPI) -- Democratic presidential nominee Barack Obama leads Republican John McCain by eight points among registered U.S. voters, a poll indicates.

The Gallup Poll Daily tracking shows Obama leads McCain 50 percent to 42 percent. Gallup said Obama has had a statistically significant lead for 10 days.

"This ten-day stretch of a significant Obama lead is the longest since he became the presumptive nominee back in early June, and the longest for either candidate at any point in the campaign," Gallup said in its analysis.

For the Gallup Poll Daily tracking, results are based on combined data from Oct. 3 to Oct. 5. The poll of 2,744 registered voters has a margin of sampling error of plus or minus 2 percentage points.