The issue of federal recognition for the Lumbee Tribe has been batted around Congress for more than thirty years. But the political opportunity it represented in the last election could be what pushed it over the finish line, said Kevin Washburn, former assistant secretary of Indian Affairs at the Interior Department and a professor at the University of California, Berkeley School of Law. “It comes up every four years because North Carolina is a battleground state and the Lumbee represent tens of thousands of people,” Washburn said.