Conor Sen: Abrams’ victory in Georgia sharpens Democrats’ debate about how to win

There is a growing debate within the Democratic Party about the kind of candidate who would be best positioned to beat President Donald Trump in 2020. Would it be one with a working-class message like Sen. Bernie Sanders of Vermont? Or would it be a more establishment figure with a similar appeal like former Vice President Joe Biden?The victory of Stacey Abrams, an African-American woman, in the Georgia Democratic gubernatorial primary on May 22 is a reminder that nothing matters unless you firs