After the Dean campaign ended, Johnson joined three other Dean for America staff members (Ben Self, Jascha Franklin-Hodge, and Joe Rospars), to found Blue State Digital, a company that provides technology services and online strategy for Democratic campaigns, including the 2008 Barack Obama Presidential Campaign. In 2006, Blue State Digital was one of Fast Company’s Fast 50. In 2007, Johnson was "asked to leave" the company due to issues with other members of the partnership.