Democratic presidential candidate Sen. Bernie Sanders (I-Vt.) speaks during a campaign event Jan. 5 in Boone, Iowa. (Patrick Semansky/AP) CONCORD, N.H. — In early December, about 100 activists aligned with Sen. Bernie Sanders (I-Vt.) gathered in South Bend, Ind., the home turf of rival candidate Pete Buttigieg. They held up signs touting Medicare-for-all and other signature Sanders proposals. One accused Buttigieg of neglecting African Americans. Another said it was crucial for Sanders to win […]