Four brands of Democrat make their case in Montana’s western congressional primary

Ask any Democratic candidate for Montana’s Western Congressional District about the upcoming primary and you’ll hear a similar refrain: The primary is just prologue; the real race is in November. Implicit in that obvious reminder is each candidate’s promise: I’m the one who can win in November. I’m the party’s best bet, after years of defeat, to seize a congressional seat that could, this year more than most, be within the right candidate’s reach. The particular circumstances of the seat, and of...