It's time for Ukraine to get a new President: Trump after oil deal with Putin. After announcing oil deal with Russian President Vladimir Putin, US President Donald Trump slammed Ukrainian President Volodymyr Zelenskyy after he called his decision "weak" and "unworthy". Trump said, "It's time for Ukraine to get a new President." "You've lost 30% of your country, and you've had over a million people killed...That's a war that should've never started," added Trump.