Politico: “On Saturday night, at the high-stakes Democratic Jefferson-Jackson dinner, the Vermont senator launched a new, frontal attack on Clinton’s record, caution and character — a direct response to her recent surge in the polls here and nationally, and fueled by her strong performance at the first Democratic debate earlier this month. The shift represents a gamble: Can a nice-guy candidate publicly dedicated to running on substance turn to attack mode without sacrificing his reputation as an authentic voice of the people?”

