What are the most representative — dare we say, most American — states in the nation? And what does that even mean?

Our friend Lenny Bronner, The Washington Post’s tousle-haired political-stats wunderkind, needed an answer. You may recognize Lenny from his vote-night telecast appearances, or maybe from what his LinkedIn page calls the “Stanford Austria Club — Kaffeehauskulturverein.” Regardless, for his election models, Lenny needed to know how well results in one state could predict those in another.