And so it begins...

First, with an email to close supporters:

Then, with a video on her Facebook page:

And, new logo and revamped web site:

And, finally, with the tweet everyone was waiting for:

I'm running for president. Everyday Americans need a champion, and I want to be that champion. –H https://t.co/w8Hoe1pbtC
— Hillary Clinton (@HillaryClinton) April 12, 2015