The new US administration has revealed a stunning reversal of America’s policy on the war in Ukraine. US President Donald Trump accused his Ukrainian counterpart of misleading the US into spending billions of dollars on a war that could not be won. He also blamed Volodymyr Zelensky for starting the war, despite the fact Russia invaded. So is all this about what's best for Ukraine? Or is it more of a personal vendetta, dating back to Trump's first term in office?