Obama Holds Sizable Lead In Today's Tracking Polls
By Eric Kleefeld - October 1, 2008, 1:06PM

Here's a wrap-up of the four major national tracking polls for today. Barack Obama continues to hold a substantial lead over John McCain:

• Gallup: Obama 48%, McCain 44%, with a ±2% margin of error, compared to a 49%-43% Obama lead yesterday.

• Rasmussen: Obama 51%, McCain 45%, with a ±2% margin of error, unchanged from yesterday.

• Hotline/Diageo: Obama 47%, McCain 42%, with a ±3.2% margin of error, compared to a 47%-41% Obama lead from yesterday.

• Research 2000: Obama 51%, McCain 41%, with a ±3% margin of error, unchanged from yesterday.

Adding these polls together and weighting them by sample sizes, Obama is ahead 49.4%-43.7%, down just slightly from yesterday's 49.8%-43.3% lead, but still well ahead.

(TPM.com's Election Central)