Looks like the post nomination bump has faded a little for obama
http://www.gallup.com/poll/108376/Gallup-Daily-Obama-McCain-Tied-45.aspx
http://www.gallup.com/poll/108376/Gallup-Daily-Obama-McCain-Tied-45.aspx
PRINCETON, NJ -- The latest Gallup Poll Daily tracking update on the presidential election finds John McCain and Barack Obama exactly tied at 45% among registered voters nationwide.
Voter preferences had been fairly evenly divided for the past week, with Obama generally holding a slight advantage of two or three percentage points. This is the first time since Gallup's May 31-June 4 rolling average that Obama does not have at least a slim advantage over McCain. Obama's largest lead to date has been seven points.