The article body provided does not contain substantive reporting on who supplies ChatGPT with polling data or the Brooklyn connection referenced in the headline; it consists primarily of page code and a list of related article links on other 2026 US midterm topics, including ballot scanner failures in New York's Westchester County, S&P 500 performance after midterms since 1950, state-by-state poll closing times, Democratic Senate math, Election Day remarks by Donald Trump, school closures, and stock market movement.