A Lesson for 2020 from 2012

“If you’re basing your entire campaign on white people, it leaves you little margin of error.” Donald Trump? No, Mitt Romney.

Many years ago, in 2012, just after the election in which Barack Obama beat Mitt Romney to win his second term, Slate published a very interesting article that merits revisiting as we think about how to beat Trump in 2020 and who is most likely to do so.

The answer, unsurprisingly, comes down to African American voters. Romney was quite certain going into the election that he was going to win, despite lots of polling data indicating…