Some depressing facts for Republicans, pointed out by Dan Pfeiffer (one of Obama's senior aides) this morning:
http://www.cnn.com/2015/11/10/opinions/pfeiffer-democrats-view-of-gop-candidates/index.html
1) As Dan Balz pointed out in The Washington Post a few months ago, if the Republican nominee wins the same share of the white vote in 2016 that Mitt Romney won in 2012, he or she would need to receive 30% of the non-white vote to win the White House. Romney won 17% of the non-white vote in '12, so this a tall order.
2) In 2012, President Barack Obama won 332 electoral votes to Romney's 206. The Republican nominee could flip Florida, Ohio and Virginia -- the three biggest swing states -- into the red column and would still lose to a Democrat 272-268.
The point is that the Republican nominee has to have significantly broader appeal than Romney (who was the most broadly appealing GOP candidate in '12).
Being a little better, a little defter and having a few less vulnerabilities will not be enough to return a Republican to the White House.
Last I checked, this nominee won't be running against Barack Obama.
That's true. But what states will be lost to Hillary that Obama won?
It's an interesting point and one I hadn't really thought about too much because it's way too far way.
Here's the ones Obama won by less than 10 points, other than the three you list:
Nevada
Colorado
New Mexico
Minnesota
Iowa
Wisconsin
Pennsylvania
New Hampshire
Presumably the "blame the Mexicans" primary battle will leave them too bloodied to go after the Western states and their large Hispanic populations. Best strategy is probably to throw resources into Pennsylvania and Iowa, both of which were won by less than 6 points.