WASHINGTON - FEBRUARY 28:  Independent presidential candidate Ralph Nader listens from the hallway during a press conference at the National Press Club February 28, 2008 in Washington, DC. Ralph Nader announced that Matt Gonzalez, former member of the San Francisco Board of Supervisors, will run as his vice presidential candidate in the 2008 US presidential elections. Getty Images logo Getty Images 21 months ago

WASHINGTON - FEBRUARY 28: Independent presidential candidate Ralph Nader listens from the hallway during a press conference at the National Press Club February 28, 2008 in Washington, DC. Ralph Nader announced that Matt Gonzalez, former member of the San Francisco Board of Supervisors, will run as his vice presidential candidate in the 2008 US presidential elections.