And today, whenever I find myself feeling doubtful or cynical about this possibility, what gives me the most hope is the next generation - the young people whose attitudes and beliefs and openness to change have already made history in this election. They all have different stories and reasons. We meet at one of those defining moments - a moment when our nation is at war, our economy is in turmoil, and the American promise has been threatened once more. I know there are those who dismiss such beliefs as happy talk. It’s been about you. We were born out of revolution against an empire.