Ukraine's Zelenskyy attends European summit in London after unprecedented White House meeting
Ukrainian President Volodymyr Zelenskyy arrived in London this weekend for summit of European leaders after the unprecedented Oval Office meeting between him and President Trump ended in chaos and Zelenskyy kicked out of the White House, America's alliance with Ukraine appears ruptured as Zelenskyy defends his nation against Russia. Imtiaz Tyab reports from Kyiv.