One lesson we can learn from our history is that expansive coalitions of diverse social constituencies and movements are the midwife of transformative changes of a democratic and progressive nature. Militant minorities, to use the term of some of my friends on the left, have a crucial place and function, but they can’t substitute for the movement and organization of the “immense majority,” to use a term from the Communist Manifesto. Indeed, militant minorities will grow and gain in stature and size to the degree that they assist in the expansion, congealing, and, above all, uniting of the “immense majority.”