Right now, while we indulge New Hampshire’s childish insistence on its presidential primary being “first in the nation,” Americans should decide to bury this tradition. Nearly a century is enough: the Granite State has somehow turned a fluke into an entitlement. Worse, its obsession with primacy prolongs, complicates and distorts the presidential nominating process. In a democracy, no state should be first forever.

People have been grumbling about this and other undemocratic anomalies for years. But the standoff between Barack Obama and Hillary Clinton in 2008 gave the nominating process the equivalent of a stress test, which it failed.

We can find redemption via randomization. Every four years — in March, not January — four different states, from the North, South, East and West, should begin the voting.

Since 1920, each presidential primary season has started with New Hampshire. Primaries to select national convention delegates first emerged for the 1912 campaign. When New Hampshire officially embraced this democratizing alternative to boss rule for the 1916 contest, the timing served voters’ needs, not state conceit....