A White House meeting that was intended to kick off negotiations on a deal over Ukraine’s rare earth minerals devolved Friday into a remarkable confrontation, with President Donald Trump and Vice President JD Vance chastising Ukrainian President Volodymyr Zelenskyy and telling him he wasn’t grateful enough to the United States.

It was an astonishing display of open antagonism in the Oval Office, a setting better known for somber diplomacy. Trump laid bare his efforts to coerce Zelenskyy to agree to giving the U.S. an interest in his country’s valuable minerals and to push him toward a diplomatic resolution to the war on the American leader’s terms.