Despite an explosive exchange in the Oval Office, the Kyiv-Washington relationship is not lost, analysts say, but future U.S. support in the war effort is still undetermined.Politics, World, Donald Trump, Ukraine, US Politics, Volodymyr Zelenskyy Despite an explosive exchange in the Oval Office, the Kyiv-Washington relationship is not lost, analysts say, but future U.S. support in the war effort is still undetermined.