There's some interesting reporting buried inside this piece:
Rev. Joseph Lowery, the civil rights leader who prayed at Obama's inauguration, has long supported civil unions and predicted black churchgoers will continue to support Obama even if he backs same-sex unions. "The president has overwhelming support from the black church because people are looking at the bigger picture," Lowery said. "He will not be hurt by one issue."
Sanders agreed, remembering the 1996 political fight over the Defense of Marriage Act. "I personally don't really remember a whole groundswell of support from African Americans for the Defense of Marriage Act [when it] passed. That was a white evangelical issue," said Sanders, who also teaches Christian ethics at Howard University. "We are tolerant and that might not be a bad thing. It may be ethically messy, but I think that's the best you can do."