F or a very long time, those of us committed to strengthening American democracy felt we were—if not voices crying in the wilderness—standing on the sidelines, stamping our feet for attention. Fights over the right to vote and other civil rights are as old as the Republic, as are efforts to restrain the influence of money in politics. But until lately, the health of democracy itself was not quite a first-tier public issue. When the 2000 election showed just how important a few votes could be, we hoped this debacle would galvanize a broader movement for democracy. In March 2001, I wrote an article for this magazine entitled “Democracy’s Moment,” calling for a movement with the broad agenda of expanding voting and reining in runaway campaign spending. The closing sentence was “If the democracy movement is successful, America’s real and diverse majority will emerge and change our country for the better.” It was slightly wishful thinking, at the time. Now, 14 years later, we are in even...