Andrew Yang is the most interesting presidential candidate you’ve never heard of

Like any respectable presidential candidate, Andrew Yang calls from a diner in New Hampshire. Naturally, he’s having the clam chowder. He says it’s delicious.

Over the past few months, like the more than a dozen other Democrats running in the primaries, Yang, a 44-year-old businessman, has been campaigning in early states and doing the media rounds.

The only thing is that nobody knows who he is. Well, not nobody, but basically nobody. In early February, in a blog post...