Then, what will make a real difference is not the Presidetial race -- but Senate and House.

Now, here is a complicated question to our US poll afficiados. What I am curious about is NOT whether Dems will gain a majority (that also seems a done deal). But the composition of that majority behind(?) Obama. So,

1. Do you have some source with a statistic on Dem candidates' belonging to party wings? (Blue Dog, liberal, DLC and whatnot?)
   
2. Even better, some idea on how the likely to be elected Dem candidates are distributed?