Will Obama Get A Bump?  Oct 17 2012 @ 8:30am  If he does, Nate
Cohn expects it to be a small one:   Obama isn't unlikely to
return to his post-DNC standing of 49 or 49.5 percent of the
popular vote, which probably reflected an unsustainably poor
image of Romney and post-DNC momentum (unless Obama's losses
were almost entirely due to Democratic enthusiasm or response
rates). With Obama likely to fall in a narrow band between his
post-debate 47 percent and his pre-debate 49 percent, any gains
would be slight and potentially difficult to distinguish from
static. Of course, if Obama could get his number back near 49
percent, that would still be significant and potentially
difficult for Romney to overcome.  Silver's guess about post-
debate polling: