If I had told you eight years ago that America would reverse a great recession, reboot our auto industry, and unleash the longest stretch of job creation in our history . . . open up a new chapter with the Cuban people, shut down Iran's nuclear weapons program without firing a shot, take out the mastermind of 9/11 . . . win marriage equality, and secure the right to health insurance for another 20 million of our fellow citizens . . . you might have said our sights were set a little too high. But that's what we did. That's what you did.