Obama on ACORN and other Community Activist Groups: "calling all of you to help up shape the agenda"

This is from an address that Obama gave in 2007 to a group of community organizers.

With all the claims about fraudulent voter registration, Politico notes that "Obama’s campaign has also shelled out about $800,000 to an ACORN subsidiary, Citizens Services Inc., to help with voter registration efforts. Although ACORN says it is nonpartisan, its registration efforts tend to be focused among groups friendly to Democratic candidates."

McCain has a new ad discussing Obama's connections with ACORN