Faith communities across the nation stood with working people, civil rights groups, students and immigrants on April 4 during the commemoration of the death of the Rev. Martin Luther King Jr. in support of working families. The national observances were coordinated by Interfaith Worker Justice, which has produced resources for this mobilization, called “We Are One.” Arlene Holt Baker, executive vice president of the A.F.L.-C.I.O. and an I.W.J. board member, said the “power grab” by Wisconsin’s Gov. Scott Walker reignited a huge movement of people standing up for human dignity and human rights. She said, “We honor Dr. King with our determination to stand up and build the future our children deserve. These attacks on the middle class aren’t about the economy or the state budget. [They are] about politics and payback.”