document: The drought of 1988 hit hardest in the upper Midwest _ perhaps nowhere harder than in North Dakota . More disaster relief aid went there than to any other state . The third story in a four-part series , `` Cashing In on the Drought , '' examines how the $ 3.9 billion disaster aid program helped farmers most in need .
extractive_keyphrases: drought upper midwest north dakota disaster relief aid disaster aid program farmers
abstractive_keyphrases: four-part series