To my campaign manager, David Plouffe! The unsung hero of this campaign, who built the best, the best political campaign, I think, in the history of the United States of America.
竞选活动的声势也来自那些已不再年轻的人们，他们冒着严寒酷暑，敲开
It drew strength from the not-so-young people who braved the bitter cold and scorching heat to knock on doors of perfect strangers, and from the millions of Americans who volunteered and organized and proved that more than two centuries later a government
