I don't believe that is correct.
Actually it is correct. Here are the numbers;
Newsweek
September 2-3, 2004 Bush 51.88% Kerry 41.07%
September 9-10, 2004 Bush 48.55% 43.47%
Gallup Poll
September 3-5, 2004 Bush 48.38% Kerry 46.22%
September 13-15, 2004 Bush 50.00% Kerry 42.00%
CBS
September 6-8, 2004 Bush 48.71% Kerry 42.41%
September 12-16, 2004 Bush 49.90% Kerry 40.55%
ABCNews/Washington Post
September 6-8, 2004 Bush 50.21% Kerry 43.59%
Time
September 7-9, 2004 Bush 50.00% Kerry 39.00%
http://www.freerepublic.com/focus/f-news/1222964/posts
Ahem, using the numbers you provided, Newsweek has Bush up +11 % the first week of September, while for the same week Gallup has Bush up only by +2%. You call that agreement?
See the my post #102 above, its an article by the pollster Zogby, it explains why Newsweek as well as Gallup and some others, vary all over the place from week to week.