If we must, as Democrats, wring our hands and lose sleep over national polling, let's at least do it consistently.  I deeply respect this website but I am tired of logging on to find that (gasp!) Obama's lead has disappeared.  The CBS poll showing a 42-42 tie uses a sample only a fraction of either the the Gallup or Rasmussen polls which show Obama maintaining his lead, day in and day out, over the last week.  The Repubs may well get a bounce from their convention, but what really matters is the state of the race in the 14 battleground states.