What isn't mentioned in the piece is that Sanders endorsed Jesse Jackson in both of Jackson's Presidential bids (1984 & 1988).
"In 1988, Sanders and his organizers helped Jackson win a surprise victory in the Vermont caucuses--by one state delegate. In Jesse’s memorable phrase, Bernie Sanders & Jim Hightower were among the few elected White officeholders brave enough to “cross the color line” to support him when it mattered."
25 Things You May Not Know About Bernie Sanders
Sander's has a long history supporting civil rights/racial equality:
"Sanders actually got involved in politics through the civil rights movement, as a community organizer with CORE (the Congress of Racial Equality) in Chicago. He organized a sit-in against segregated housing in 1962. Later, reports John Nichols in The Nation, as an organizer for SNCC (the Student Non-Violent Coordinating Committee), Sanders joined the March on Washington in 1963 and was in the crowd for Martin Luther King's "I Have a Dream" speech. He endorsed Jesse Jackson for president -- twice."
Chicago Tribune - Aug. 13 2015
"The civil rights movement also became a home for him. He became leaders of an NAACP ally called the Congress of Racial Equality at a time when most civil rights activists were black. He was arrested while demonstrating for desegregated public schools in Chicago. (No big deal, says Sanders: “You can go outside and get arrested, too!” he jokes. “It’s not that hard if you put your mind to it.”) He once walked around Chicago putting up fliers protesting police brutality. After half an hour, he realized a police car was following him, taking down every paper he’d up, one by one. “Are these yours?” he remembers the officer telling him, holding up the stack of the fliers.
In his second year at college, Sanders made national news. On a frigid Tuesday afternoon in January, 1962 the 20-year-old from Brooklyn stood on the steps of University of Chicago administration building and railed in the wind against the college’s housing segregation policy. “We feel it is an intolerable situation, when Negro and white students of the university cannot live together in university owned apartments,” the young bespectacled student told the few-dozen classmates gathered there. Then he led them into the building in protest, and camped the night outside the president’s office. It was Chicago’s first civil rights sit-in."
Time Magazine, The Radical Education of Bernie Sanders
"Let's not keep putting poor people in jail and disproportionately punishing blacks." Bernie Sanders in 1991
You Tube, Bernie Sanders on Crime, Punishment and Poverty
Found through: 20 Examples of Bernie Sander's Powerful Record on Civil And Human Rights since The 1950's
Cornell West's support of Bernie will certainly help Sanders overcome some of the support for Clinton in the black community. At this point many people are unaware of Sanders long history in the civil rights movement. When they learn about it, and contrast it with Bill & Hillary's record, Sanders should do even better.