US-Ukraine tensions rise as Trump criticizes Zelensky during diplomatic visit

Tensions between the US and Ukraine have escalated, with accusations exchanged between President Trump and President Zelensky. A planned press conference in Kyiv was canceled at the US's request after Trump criticized Zelensky, calling him a "dictator." US officials expressed frustration over perceived roadblocks from Kyiv in negotiations with Russia. National security adviser Mike Waltz highlighted Zelensky's "insulting" rhetoric towards Trump, which has contributed to the rift. Meanwhile, UK Foreign Secretary David Lammy questioned Russia's willingness to negotiate peace. He stated that there has been no progress towards a settlement, despite ongoing discussions among G20 foreign ministers.