Except Hillary isn't solidly blue.
And neither is the Donald solidly red (as you might have gathered from the screaming around here for the last year).
And Bernie's people are going to either sit on their hands or grudge vote Trump, per their own angry declarations, over Hillary stealing the nomination from them.
And the support behind Trump is already enormous, based on survival-level fears of literally tens of millions of people.
And Trump is going to destroy Hillary in targeted attacks and debates.
And that FBI espionage investigation still hangs over her.
Blue?
"Solidly blue"?
There's no such thing.
Based on the number of Bernie stickers/signs/pins I've seen in my deep blue east SF Bay neighborhood, I'll guess that Trump will carry California.