Excellent think piece from the Washington Post today outlining why there are structural differences between the mood now and the mood in 2005, before the last big Democrat wave election.  The bottom line really is, it will all come down to the candidates that run and the race that they run.  That should be the biggest takeaway from 2016 for everybody.

http://www.msn.com/en-us/news/politics/think-things-will-be-rosy-for-democrats-in-2018-not-so-fast/ar-AApVvJu?li=AA5a8k&ocid=spartandhp