To handicap the race properly, you have to know who votes when.

NRPLUS MEMBER ARTICLE I f you want to call the game, you have to know the playing field. The most important element of any election is the voters. The playing field of voters in a national presidential primary is unlike any other American election, because each state and territory votes not only separately, but also in sequence — not all at once, and not all under the same rules.

Last March, before Joe Biden had even officially entered the race, I looked at the Democratic primary calendar and what it could tell us. We’ve had a lot of water under the bridge since then — …