Three scenarios for how the US midterm results could unfold

Americans are voting in the midterm elections after months of campaigning and billions of dollars in spending. Polls give Democrats an apparent advantage, but the article notes that surveys have not always been reliable and outlines three possible outcomes. In a major Democratic wave, the party could win a commanding House majority and take the Senate, potentially with victories in traditionally conservative states such as Texas or Kansas. Such a result would be a sharp rebuke to Donald Trump and set up two years of conflict between the president and an empowered Democratic Party in Congress.