KYIV, Ukraine (AP) — President Donald Trump has again lashed out at Ukrainian President Volodymyr Zelenskyy. Trump says Zelenskyy is prolonging the “killing field” after the Ukrainian leader pushed back on ceding Crimea to Russia as part of a potential peace plan. Zelenskyy on Tuesday ruled out the idea of Ukraine ceding territory to Russia as part of any potential peace agreement. Talks are set for Wednesday in London among U.S., European and Ukrainian officials. During similar talks last week in Paris, U.S. officials presented a proposal that included allowing Russia to keep control of occupied Ukrainian territory as part of a deal. That’s according to a European official.