US diplomats told Ukraine’s president, Volodymyr Zelenskiy, that a prestigious White House visit to meet Donald Trump was dependent on him making a public statement vowing to investigate Hunter Biden’s company, and a Ukrainian role in the 2016 elections, according to texts released on Thursday night. The texts, released by three congressional committees holding impeachment hearings, show that the diplomats made clear that any improvement in Kyiv’s relations with Washington would be dependent on Zelenskiy’s cooperation in Trump’s quest to find damaging material about son of his leading political opponent, and on the Democrats in general. In August, Zelenskiy’s government became aware, through a US press report, that military aid for its struggle with Russia, had been withheld by Trump, in an apparent effort to increase the pressure on the Ukrainian government. The texts are exchanges from July to early September between three US diplomats - Gordon Sondland, the ambassador to the European Union, Kurt Volker, the then special envoy on Ukraine, and Bill Taylor, the acting ambassador to Kyiv. Trump’s personal lawyer, Rudy Giuliani and a Zelenskiy aide, Andrey Yermak, also make brief appearances in the correspondence.