It's 2024. Extreme weather events due to global warming have overwhelmed parts of the United States. Water is increasingly scarce. The mass migration of people in search of more livable conditions has caused political tension and border closures. A drug epidemic spreads across the country. And a candidate for president promises he can fix the country's problems with more religion and fewer regulations.
That's the premise of Octavia E. Butler's novel Parable of the Sower, which was published in 1993.