According to Fair's model, The 2016 election cycle is very unfriendly to the Democratic Party. With the second term of the Obama presidency coming to a close, a bias to change parties and give the other side a chance gives the Republicans a strong head start. Coupled with tepid economic growth the impetus to change could be overwhelming. According to Fair's model - which has been within 2% of the winner's vote percentage in every year since 1978, the Republicans should win the presidency 55-45% and win Congress with a 54.5-45.5% margin.
Given Ray Fair's model - which doesn't know anything about Trump or Clinton - get ready to say "President Donald J. Trump." The only wildcard that might tip the election to Clinton is a third party run to the right of Trump that siphons off enough votes in swing states to cost Trump the election.