The Greens have been active as a third party in the United States since 2001. The party first gained widespread public attention during Ralph Nader's presidential runs in 1996 and 2000. Currently, the primary national Green Party organization in the U.S. is the Green Party of the United States, which has eclipsed the earlier Greens/Green Party USA.
There are several Independent Parties in the United States. Among them are:
American Independent Party (California)
Independent Party of Connecticut
Independent Party of Delaware
Independent Party of Oregon
The Independent Party is a name chosen by Ralph Nader for his 2008 presidential campaign to gain easier ballot access in some states