The Junk Science that he says wrongfully convicted him hoping to free others. This is Nbc Nightly News with kate snow. Good evening. We are tracking dangerous cold and blizzardlike conditions that are disrupting flights, nfl games and may have a major impact on the first votes of the 2024 election. Were seeing record low windchills that almost seem like typos. Theyre not. Negative 60 in montana, negative 50 in South Dakota and negative 45 in minnesota. There are blizzardlike conditions in places like michigan and western new york. Already more than 16,000 flights have been delayed or cancelled this Holiday Weekend and its only going to get worse in parts of the country with the cold expanding into the south and the northeast in the days ahead, but all eyes on the political world are on iowas weather. Where theyre going to see windchills there in the negative