With Bernie Sanders and Elizabeth Warren both offering their own form of challenge to the Democratic establishment, which candidate would have a better shot at succeeding? Which candidate would ultimately make a better president? To answer that question, on this episode we'll ask two of their strongest supporters.

Adam Green is the co-founder of the Progressive Change Campaign Committee, an organization that helped elect Warren to the Senate in 2012 and that quickly endorsed her presidential bid shortly after her announcement. He argues that she brings policy expertise and a winning message that is unmatched by other candidates.

Bhaskar Sunkara is the founder of Jacobin Magazine, America's leading socialist publication. He argues that what America truly needs is an outsider who preaches democratic socialism in order to remake our economic and political systems.