Massachusetts Democratic Senate candidate Elizabeth Warren dismissed the GOP’s “class warfare” criticism of President Obama’s push for tax increases as “founded on fantastical notions about individual rights.” “The argument that people somehow have a ‘right’ to keep what they earn is totally bogus,” Warren contended. “In our complex economy it takes cooperation to produce anything. Who can say what anybody has ‘earned?’” Rather than leave the allocation of rewards to what she characterized as “the arbitrary whims of the market,” Warren argued for a “socially determined distribution of the jointly produced output.” “Wouldn’t it be more equitable for the people’s...