NPR News Now covers a Houthi missile attack on Riyadh and the resulting humanitarian crisis in Yemen. The report details early voting for US midterms, noting a $2 billion ad spending race with Republicans holding an advantage in key Senate races. A federal appeals court ruled that immigration officials must allow detainees to contest third-country deportations. Additionally, the episode mentions President Trump’s plan for an AI force, the Fat Bear Week competition in Alaska, and record-high diesel prices.