 He's been elected to ten two-year terms (in ten tries) on the County Council of the Green Party of Los Angeles County since 1992, and served as its Co-Coordinator from 2005-2006.He has also served multiple terms on the party's state Coordinating Committee, and served as its Co-coordinator from 2006-2008 and has served as a state party spokesperson since 2011.Feinstein was the founding and managing editor (1997–2001) of the national Green newspaper Green Pages, has been a GPCA delegate to the National Committee of the Green Party since 2007 and was a GPCA delegate to the 2000, 2004, 2008 and 2012 Green Party Presidential Nominating Conventions.