"Key Moments and Candidates to Watch in the 4th Republican Debate"

During the Republican debate, Chris Christie slammed Vivek Ramaswamy, calling him "the most obnoxious blowhard in America," and defended Nikki Haley against insults on her intelligence. Ramaswamy criticized both Christie and Haley on their foreign policy positions. Haley faced controversy over her proposal to end online anonymity, which Ramaswamy labeled as "fascism." Christie expressed willingness to send troops to Gaza to rescue American hostages.