It is a genuinely interesting result that is not discussed enough.
Over 55% of the state's population lives in just three counties - Douglas (Omaha), Lancaster (Lincoln) and Sarpy (Omaha suburbs). And all three swung substantially towards Biden, while most of the rural counties are completely maxed out for the GOP. It helps that those three counties are growing decently quickly, while the rural areas are generally stagnant or shrinking.
It's funny because on the NYT map Sarpy, Douglas, and Lancaster had the 3 biggest county swings (left) in the state.
