Washington Post/ABC Tracker

The Washington Post/ABC tracker is out, and it confirms what we are seeing in other trackers today, that Obama's lead marginally has increased:

Obama 53
McCain 44

This poll yesterday was 52-44. So we're now in a position to sum up the six trackers we follow religiously:

Rasmussen, Obama +4
Research 2000/Daily Kos, Obama +6
Hotline, Obama +7
Zogby, Obama +7
ABC/Washington Post, Obama +9
Gallup Expanded Likely Voter Model, Obama +9

Talking Points Memo observes:

Adding these polls together and weighting them by the square roots of their sample sizes, Obama is ahead 51.0%-44.1%, a lead of 6.9 points, compared to the 50.5%-44.2% Obama lead from yesterday.

The weighted average yesterday was 6.3.