Not a particularly Republican/conservative electorate
Democratic pollster Anna Greenberg on NPR stated (hopefully at the time) that exit polls showed the electorate to be less conservative, and less white, than in 2010. A Facebook friend of mine who is an elections expert confirmed that "the Democracts got their turnout." Among other things, Black voters were 12% of the electorate, compared to less than 11% in 2010 and less than 10% in 2006. Conclusion: The Democrats did the best they could in very unfavorable conditions.