Nebraska and Maine are the only states that don't play by winner-take-all rules under the Electoral College. Instead, both have laws that distribute their electoral votes in part by the statewide popular vote winner and in part by who gets more votes in each of the state's congressional districts.
Nebraska has five electoral votes — four of which were projected by NBC to go to Trump. But polls of the 2nd District, which covers the city of Omaha and swaths of suburban voters who tend to lean more toward Biden, appeared to favor the Democratic nominee.
In 2016, Trump won all five of Nebraska's votes over Hillary Clinton. In 2020, however, the Omaha-area district appeared less secure, and Trump traveled to the city during the final week of the campaign to hold a rally.
— Kevin Breuninger