The times demand serious economic ideas. Harris supplies gimmicks.

Vice President Kamala Harris’s speech Friday was an opportunity to get specific with voters about how a Harris presidency would manage an economy that many feel is not working well for them. Unfortunately, instead of delivering a substantial plan, she squandered the moment on populist gimmicks.

Americans are clearly still anxious and angry about the high cost of groceries, housing and even $5.29 Big Macs. While the inflation rate has cooled substantially since the 2022 peak, an ostensible Biden-Harris administration accomplishment, prices remain elevated relative to the Trump years. So it’s a real political issue for...