Addressing cheering crowds on a frigid winter’s day, Sen. Bernie Sanders (I-VT) delivered a campaign message familiar to his supporters, pledging to lead the charge for a $15 minimum wage and to fight for access to health care, among other causes he has championed over the years.
What was different at his official campaign launch on Saturday was the backdrop: a sea of black and brown faces made up a good number of the thousands of supporters who had turned out in the bitter co...