Can Trump win without Haley supporters?

This won’t be easy, but imagine, if you can, that Donald Trump is capable of putting his massive ego aside and is prepared to be gracious to a political opponent he doesn’t like — and one who, for good measure, doesn’t like him either. Unless you just emerged from a coma, you know we’re talking about the icy relationship between Trump and Nikki Haley.

Let’s imagine that Trump tells her that while they had their differences during the primary campaign, it’s time, for the sake of party unity...