from fightthesmears.com:

“Barack Obama Never Organized with ACORN”.

• Fact: Barack was never an ACORN community organizer.
• Fact: ACORN never hired Obama as a trainer, organizer, or any type of employee.
• Fact: ACORN was not part of Project Vote, the successful voter registration drive Barack ran in 1992.

– Lies. All Lies. –

From wikileaks, Obama and Acorn:

“These claims are contradicted by several sources, a number of which I linked to in my piece, “Inside Obama’s Acorn.” In that piece, you’ll find a link to a Los Angeles Times piece in which Chicago Acorn leader Madeline Talbott is described as so impressed with Obama that “she invited him to help train her staff.“”

You’ll also see a link to a statement by Obama himself, made in pursuit of Acorn’s endorsement. Obama says: “I’ve been fighting alongside ACORN on issues you care about my entire career. Even before I was an elected official, when I ran Project Vote voter registration drive in Illinois, ACORN was smack dab in the middle of it, and we appreciate your work.”

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It goes on to offer substantial evidence that directly contradicts what he and his campaign are saying about his ties with acorn.