Democrats’ vibes are excellent. Can they turn that into votes?

Vice President Kamala Harris, her running mate, Minnesota Governor Tim Walz, and Gwen Walz, wife of Tim Walz, cheer as the Democratic National Convention comes to a close on August 22 in Chicago. | Victor J. Blue/Bloomberg via Getty Images

Like 20 million others each night last week, I watched this year’s high-energy, celeb-packed Democratic National Convention with plenty of interest.

While true policy proposals came at a trickle over the course of four nights, what flowed plentifully were vibes ...