NPR News Now covers the midterm election landscape, highlighting a Democratic lead in polling and growing concerns over potential federal military deployment at polling places. The episode also reports on escalating US-Iran tensions following President Trump’s threats and Iran’s defiant UN speech. Additionally, it details the high-stakes state visit by Chinese President Xi Jinping to Washington and the internal AI industry debate over development pauses, with smaller labs warning that slowing down would cement the dominance of major players.