The party of Franklin Delano Roosevelt and John F. Kennedy has got to find good candidates who can reach out to working people. Democrats in Montana thought Mr. Quist could make that happen in the special congressional election, but the national party stayed out of the battle, conceding the race to Mr. Gianforte, who received millions of dollars from the national GOP and various big business PACs. Despite recent pledges to fight for votes in every zip code in the nation, Democratic leaders apparently reasoned that, since Montanans had not elected a Democratic congressman in two decades, it was not going to happen in 2017. That was a timid calculation. Yes, it was an uphill fight, but Montana does have a Democratic senator, Jon Tester, and a Democratic governor, Steve Bullock, so the task was far from impossible.