If you live in an area with a competitive race, be it for Senate, governor or any other office, parties and activist organizations want to get you to the polls. In addition to phone calls, knocking on doors and offering rides, activists are now using a different tactic — vote-shaming. Residents from Alaska to North Carolina to New York are reporting receiving letters with their voting history in them and a not-so-subtle message — vote this time or we’ll tell your neighbors you didn’t. The letters don’t say which candidate a person voted for, that is impossible to know, but...