Female candidates challenge electability question in debates

For months, the names of white men have sat at the top of early Democratic presidential primary polls.While it's too early in the Democratic nominating process to know if they succeeded on that front, some of the women emerged as dominant forces on the debate stage, driving the policy discussions and insisting on being heard on issues despite the crowded field.Massachusetts Sen. Elizabeth Warren and California Sen. Kamala Harris led the way and were widely seen as among the top performers.