Democratic lawmakers in Albany are never satisfied: Their party already has a firm lock on the key levers of power, yet last week they moved to solidify that power even more — via an amendment to the state Constitution. And because they control both houses of the Legislature, the measure sailed through easily, with barely any public input. The amendment deals with the redistricting process — how new maps, based on the Census, must be drawn and approved. And the changes essentially favor Dems and tie Republican hands, so Democrats will be free to draw lines to their advantage. Under...