President Donald Trump walks on the South Lawn of the White House.Donald Trump has responded to Russia’s latest deadly attack on Ukraine by criticising Volodymyr Zelenskyy.The US president took aim at his Ukrainian opposite number rather than Vladimir Putin in a rambling post on his Truth Social platform.It came just hours after he appeared to downplay the Russian bombing – which killed at least 34 people on their way to church to mark Palm Sunday – by claiming it had been “a mistake”.The atrocity was another blow to Trump’s hopes of brokering a peace deal to end the conflict.In his Truth Social post, which was published this afternoon, Trump tried to heap the blame for the war on his predecessor, Joe Biden, and Zelenskyy.He wrote: “If the 2020 Presidential Election