A planned press conference between Ukrainian President Volodymyr Zelenskyy and U.S. envoy Keith Kellogg was canceled Thursday in Kyiv at the request of the U.S. delegation, Ukrainian officials said.<br />The cancellation comes just a day after Donald Trump called Zelenskyy a “dictator” and criticized his leadership. Kellogg, Trump’s envoy for Ukraine and Russia, was in Kyiv for talks as questions grow over U.S. support for Ukraine.<br />No reason was given for canceling the event, and the U.S. delegation has not commented.