President Obama wrote a message to us today:
"Five years ago today, a few thousand of us gathered in Springfield, Illinois, to launch an improbable campaign for president.
The task was to build a grassroots movement capable of making the kind of change we believe in.
You’ve got to see this video about that journey — it will make you smile.
From the very start this has been an experiment in our political process, testing whether ordinary people really can still come together to change this country.
We proved that it’s possible. But we’ve also learned that entrenched interests adapt and claw back even harder, which means this election will be even more of a challenge.
I can’t wait to see what you can do.