Is Hillary Clinton a Regional Candidate?

So asks an author at The Week. Pointing out that Clinton has only done well in the South, which the Democrats will doubtless lose in November anyway, he notices a pro-Sanders argument that she is even weaker against whomever the Republicans field than Sanders would be: the bulk of her voters will be overwhelmed in what are, overall, easy Red states.

It must be strange to be a "regional" candidate in the region that supports you least.