Can you feel the electricity in the air?

Update: Yes, Twitter.

(Guardian) – Hillary Clinton is planning to officially launch her US presidential campaign on Sunday while en route to Iowa, a source familiar with the campaign has confirmed to the Guardian.

The former secretary of state is scheduled to declare her second run for president on Twitter at noon eastern time on Sunday, the source told the Guardian, followed by a video and email announcement, then a series of conference calls mapping out a blitzkrieg tour beginning in Iowa and looking ahead to more early primary states.