US media attention on September 23 was initially dominated by President Trump's continued claims linking Tylenol to autism and the controversy surrounding Jimmy Kimmel's show not airing on Sinclair stations. By late morning, the focus began to shift towards Trump's upcoming address to the UN General Assembly and concurrent legal challenges.
In the early afternoon, reports highlighted Trump's speech at the UN, where he criticized the global body, while news also emerged of the Secret Service thwarting a telecommunications threat near the UN.
Later in the day, the conviction of Ryan Routh for attempting to assassinate Trump, along with his subsequent outburst and attempted self-stabbing in court, became a central story. Trump's address at the UN, where he continued to criticize international institutions and surprisingly shifted his stance on Ukraine, remained a prominent topic into the evening.