Pew has a new poll out, conducted 9/11-9/14, showing Bush leading Kerry 47%-46% among likely voters, and both candidates tied at 46% among registered voters. Pew's last poll, conducted 9/8-9/10, (which I never heard about), showed Bush leading Kerry 54%-38%!
I wonder if the 9/10 poll was suppressed and the 9/14 poll conducted, because of the 16 point lead it showed for Bush. It seems odd to conduct two separate polls with no time break between them, instead of reporting aggregate results as a one-week survey.
http://people-press.org/reports/display.php3?ReportID=224