Argentine President Javier Milei has confirmed his attendance at President-elect Donald Trump's inauguration, breaking with a longstanding U.S. tradition of foreign leaders not attending. This historic invitation marks the first time a sitting Argentine president will participate in such an event. Trump revealed other invitations extended to world leaders including China’s Xi Jinping, though Xi has not confirmed his attendance. The involvement of foreign heads of state in the inauguration may signal a shift in U.S. political customs. Discussions about international relations and potential deals with the IMF also emerge as key themes.