San Diego – Van Jones, the former Obama Administration green czar who resigned in controversy, appears on the fast track to a political comeback — emerging as a star at this weekend’s California Democratic convention and lauded by House Minority Leader Nancy Pelosi as a “leader of the future.” Jones, who as head of an activist group called “Rebuild the Dream” has become a leading voice of the Occupy movement, was given the star speaking slot to address hundreds at the kickoff Friday night reception here sponsored by state party chair John Burton. To the cheers of the grassroots activists,...