The GOP’s electoral-map problem is not about Trump. It’s about demographics.
https://www.washingtonpost.com/politics/the-gops-electoral-map-problem-is-not-about-trump-its-about-demographics/2016/05/08/14cdf1fc-1523-11e6-924d-838753295f9a_story.html
"Donald Trump’s victory last week in Indiana’s primary not only effectively sealed the GOP nomination for the real estate billionaire but also brought into sharp relief how difficult it will be for any Republican to get to 270 electoral votes and beat Hillary Clinton to become the 45th president this fall.
Start here: Eighteen states plus the District of Columbia have voted for the Democratic presidential nominee in every election between 1992 and 2012. Add them up, and you get 242 electoral votes.
By contrast, 13 states have voted for the Republican presidential nominee in each of the past six elections. Total them up and you get 102 electoral votes.
There are two important takeaways from these facts: The generic Democratic nominee starts with an electoral vote lead of 140, and the Democratic nominee needs to find only 28 votes beyond that reliable base to win the presidency."
I would argue that Trump only makes these problems worse for them as he alienates everyone but a small contingent of bigots. So while he starts off in a bad position to begin with he is only making it worse with his nonsense.
