2016 was supposed to be the year that Dems took the Senate, but they were also expected to lose it in 2018.
This is gonna require a major outreach to the white working class. There is a very good chance that Republicans end of with 60+ seats in the senate and with a Republican president, they will be able to do absolutely anything they want and there will be nothing democrats can do to stop it.
Trump was able to completely change the map. At this point I honestly believe that the progressive movement in the US is dead for a generation, but that can change if democrats find a way to do well in 2018. Democrats need to find a way to motivate their base to get out and vote in 2 years, but I just don't see it happening. Defending 24 seats MANY of which are in (now) red states will be very difficult and there is a very good possibility that Republicans pick up the 9 seats required for a supermajority.
The thing is, if Obama was unable to convince Democrats to go out and vote in the midterms, then who will be able too? Dems need something to spark it, and I just don't know what that could be.