Obama's Third Party History http://freerepublic.com/focus/f-bloggers/3260063/posts
Obama Honors Socialist Leader at White House Admits He Stole Her Yes We Can Slogan http://freerepublic.com/focus/f-news/2889301/posts
Obamas Radical Past http://freerepublic.com/focus/f-bloggers/3260066/posts
Additional resources regarding Obamas communist backers.
http://www.nationalreview.com/articles/302031/obamas-third-party-history-stanley-kurtz
http://www.breitbart.com/big-government/2012/06/07/obama-caught-lying-again-he-was-member-of-new-party-says-kurtz/
http://www.breitbart.com/big-government/2012/06/08/new-party-literature-suggests-obama-paid-dues-to-join
etc. etc. etc.
The website of the Congressional Progressive Caucus was hosted by the Democratic Socialists of America until 1999. ( http://www.wnd.com/2002/11/15866/ )
The Democratic Socialists of America are the U.S. branch of the Socialist International
Bernie Sanders bump