Obama offering below minimum wage—no wage at all

Organizing for Action (Obama's campaign arm which was fast tracked for its non-profit status while Tea Party groups waited years) is advertising for 14 unpaid interns. How's that for below minimum wage, way below? Full time below, and part time below.

"OFA is now accepting applications for full-time and part-time HQ Interns for the Spring 2014 and Summer 2014 HQ Internship Programs in Chicago, IL.... HQ Interns will have the unique opportunity to work closely with staff in advancing the President's agenda. Departmental placements available include Grassroots Organizing, Training, Issue Campaigns, Digital, Press and Finance. Please include your departmental placement preferences in your cover letter. Accepted HQ Interns will be paired with departments based on their stated interest, qualifications and availability. This is a 14-week, unpaid internship program." (from the OFA website)