Before his election, Mr Obama was a man of great charisma and a great focus for projection, largely of hopes and dreams. That is the simplest explanation for the first $700 million campaign financed largely by the people. It was for the people and by the people. But now, while Mr Obama will have greater freedom to speak more freely, he will also have awesome responsibilities. We should remember the election of Harold Washington, Chicago's first black mayor, a one-time seeming impossibility: his mayoralty was by most measures a great success - until it failed.