In 2006, Grassroots Campaigns again partnered with MoveOn.org to run Call for Change, one of the largest volunteer phonebanking efforts in American history. Over 120 organizers in 40 cities nationwide recruited and trained over 100,000 volunteers who made more than 7 million phone calls to voters in the closest races of the midterm election. Following this election cycle, Grassroots continued to expand its year-round field programs, including maintaining base-building and small-donor fundraising operations in more than a dozen cities across the country.