JD Vance said he jokingly warned Volodymyr Zelensky to 'behave' before his pivotal summit with Donald Trump this week. Vance addressed the summit with the Ukrainian leader during an interview with Fox News on Wednesday while also talking about a recent Wall Street Journal report that Tesla billionaire Elon Musk is preparing to back him for president in 2028. Read the full story at Daily Mail. #news #jdvance #zelensky #whitehouse #ukraine