As far as we know, Nikki Haley isn’t on the short list, nor on the long list. There’s no indication that she’s being considered as Donald Trump’s VP pick, and Trump forcefully smacked down a report in Axios that the campaign was looking at her. She’d still probably be the choice who, more than any other possible pick, would help Trump win in November. By conventional rules, the former South Carolina governor getting the nod would be so obvious as to be completely unremarkable — she’s the runner-up in the nomination fight; she represents a different faction of the party;...