President Donald Trump’s October 2026 campaign rallies for Republican midterm candidates have centered on tariff policies spurring domestic manufacturing investments, leading him to cite specific firms in recent speeches. In Ohio on October 4 he highlighted Stellantis, Electra.aero, and Bayer; in Alabama days earlier he named Mercedes-Benz, U.S. Steel, Eli Lilly, and ArcelorMittal. Separate remarks have referenced AI and data-center operators including Nvidia, Microsoft, OpenAI, and Anthropic, alongside broader tech and auto supply-chain players. Ongoing trade measures, including Section 301 and Section 338 tariffs affecting Canada, China, and others, plus threats of 150–300 percent duties on non-compliant foreign manufacturers, continue to frame these mentions. Additional rallies and policy announcements through the month could surface further company references ahead of the November 3 midterms.