The Trump administration is dealing with the repercussions of a Signal chat incident that mistakenly included Jeffrey Goldberg, leading to controversy over discussions about military actions against Houthi rebels in Yemen. National security adviser Michael Waltz is at the center of the controversy, with some calling for his dismissal, while others defend the chat participants. The incident has raised concerns about digital communication security, prompting some officials to alter their Venmo accounts and drawing criticism from Democrats and former national security officials about the potential risks of exposing sensitive information.