This former Clinton pollster has some interesting insight:
After four days of Republican rhetoric, it is not fanciful to hope that Bush ends up with an 8- to 10-point margin over Kerry — 52-53 percent for Bush vs. 43-44 percent for Kerry.
After the convention? Expect the lead to shrink a bit in the early days of September, but to grow to robust proportions again when the "third convention" is held — the anniversary of 9/11.
Spurred by the emotion and patriotism that will surround this grim annual event, Bush will probably take a good size lead into the debates that begin in mid-September and run until early October.
How will Bush do in the debates? My bet is: quite well. Will Kerry be able to close in October? My bet is: yes, but not all the way. But that uncertainty is what makes politics fun, especially this year.