The Republicans are strongly favored to win the Presidency in 2020 IMO.
How would you rate their 2016 chances, out of curiosity?
Anyway, yes. The two party system seems stable unfortunately.
I would probably say that the Democrats are slightly favored in the 2016 election at this point, especially if Donald Trump gets the Republican nomination (which seems somewhat likely considering his strong poll numbers). I do feel that the Democrats will do slightly worse in 2016 than in 2012, maybe going down to 310-315 Electoral Votes as opposed to 332 Electoral Votes. I still think that the Democrats will have solid gains in the 2016 Senate races, gaining around 5 or 6 seats from the Republicans.