It’s interesting the campaign sent out email before doing anything:

Peter —

I’m about to head to Grant Park to talk to everyone gathered there, but I wanted to write to you first.

We just made history.

And I don’t want you to forget how we did it.

You made history every single day during this campaign — every day you knocked
on doors, made a donation, or talked to your family, friends, and neighbors
about why you believe it’s time for change.

I want to thank all of you who gave your time, talent, and passion to this
campaign.

We have a lot of work to do to get our country back on track, and I’ll be in
touch soon about what comes next.

But I want to be very clear about one thing…

All of this happened because of you.

Thank you,

Barack