So here‘s a fresh question: What would you think if a million workers said they would be willing to back a new political effort?

One million names on a petition would show that the effort has a far wider reach than a fringe group or a self-promoter. One million names would signal to the political actors that there is mass support for building a new working-class political home. One million names might even push some Democrats to support pro-worker legislation.

Mobilizing a petition drive would cost relatively little and could start with a few progressive unions circulating one that read: …