US official advises Ukraine to tone down tensions with Trump after heated exchange

US National Security Advisor Mike Waltz advised Ukraine to "tone it down" after tensions rose between Donald Trump and President Volodymyr Zelenskyy. This follows Trump's remarks calling Zelenskyy a "dictator" and a "modestly successful comedian." A planned press conference with Trump's envoy and Zelenskyy was cancelled at the request of the US delegation. This cancellation raises questions about the future of US support for Ukraine amid the ongoing conflict with Russia. Ukraine expressed outrage over recent US-Russia talks held without its involvement. Zelenskyy stated that Ukraine would not accept any agreements made without its participation, opposing a proposed minerals deal with the US.