DES MOINES, Iowa (AP) — The federal government has illegally broken a promise to pay off the debts of a group of Black farmers, according to a class-action lawsuit. The group hopes to put pressure on officials to keep their word and to restore funding that was dropped after a group of white farmers filed legal challenges arguing their exclusion was a violation of their constitutional rights. The lawsuit filed in October remains active even as the U.S. Department of Agriculture moves forward with another effort to help farmers in financial distress in addition to paying farmers who the agency...