Attempts to correct phosphorus levels in the Everglades met with resistance. The sugarcane industry, dominated by two companies named U.S. Sugar and Flo-Sun, was responsible for more than half of the crop in the EAA. They were well represented in state and federal governments by lobbyists who enthusiastically protected their interests. According to the Audubon Society, the sugar industry, nicknamed "Big Sugar", donated more money to political parties and candidates than General Motors.[34] The sugar industry attempted to block government-funded studies of polluted water, and when the federal prosecutor in Miami faulted the sugar industry in legal action to protect Everglades National Park, Big Sugar tried to get the lawsuit withdrawn and the prosecutor fired.[35] A costly legal battle ensued from 1988 to 1992 between the State of Florida, the U.S. government, and the sugar industry to resolve who was responsible for water quality standards, the maintenance of Everglades National Park and the Arthur R. Marshall Loxahatchee National Wildlife Refuge.[11]