Tech billionaire Elon Musk said Monday that he and President Donald Trump were in the process of shutting down the U.S. Agency for International Development, escalating their war on the federal bureaucracy and defying the constitutional power of Congress to determine how money is spent.

Xi is unlikely to match Trump's tariffs dollar for dollar because China's export-driven economy is more vulnerable than that of the U.S., but he might privately signal an openness to negotiation, using intermediaries for a face-saving compromise, Singleton said.