Earlier this month, U.S. Senate candidate Graham Platner traveled to a small Downeast town for his campaign’s first formal policy rollout. The 41-year-old combat veteran unveiled his “Defending Democracy Agenda” in Machias. He chose the location because the ocean beyond its coastline was the theater for the first major naval victory of the American revolution — a fitting backdrop for his calls to return power back to the people. “Two hundred and fifty years ago we had to fight for American democracy,” Platner said. “Today we must fight again — this time, against the corruption and corporate power that threatens...