having founded the new democrat network in 1996, he currently serves as president of ndn, which has become committed to modernizing left-wing politics and building a persistent democratic majority. the ndn eschews political orthodoxy when promoting candidates. additionally, the ndn claims that it uses a more technologically modern and grassroots participatory approach to its activities than the dlc. rosenberg is a member of the aspen institute’s 2001 class of henry crown fellows and served on the 2004 democratic national convention platform committee. rosenberg has worked on the ground to help elect democrats in 12 states across the country.