United Nations September 24, 2024 11:24 am WATCH: President Biden's full speech at the United Nations President Joe Biden made his final speech to the United Nations General Assembly on Tuesday and spoke about support for Ukraine and challenges with artificial intelligence. US & World Videos 1:33 Vance does not recognize Trump's defeat in 2020 2:57 Vance says he was ‘wrong about Donald Trump' 2:29 Vance says Harris opened the ‘flood gates' for illegal immigration 3:14 Garth Brooks, Trisha Yearwood on their love of football, Habitat for Humanity, Jimmy Carter 2:36 Angelina Jolie teases message to ex who criticized her singing