How Pittsburgh became early alarm bell for the Democratic Socialists’ rise

EDITOR ’S NOTE: Laura Hollis is off this week. We hope readers will enjoy the following guest column by Salena Zito.

The rise of the Democratic left in Pittsburgh did not happen overnight. It was built over years through patient organizing, disciplined recruiting and a cleareyed focus on the races that mattered most: low-turnout primaries where entrenched power was vulnerable.

Mik Pappas’ 2017 race …