Jeanne Shaheen is Tom Brady

Both will leave the stage as the GOATs of their respective sports. What can New Hampshire Democrats learn from Shaheen (and Brady), to avoid what happened to the New England Patriots?

Most New Hampshirites know the story: More than two decades ago, after an unexpected departure in the key leadership position, an upstart talent shocked the world by showing great skill and composure, unexpectedly emerging victorious for what would be the first of three times in short order.

Then, after a high-profile disappointing defeat, the grizzled v…