WASHINGTON: President Donald Trump on Friday sought to bolster his case that he did nothing wrong in Ukraine by releasing the reconstruction of a phone call with Ukrainian President Volodymyr Zelensky in which they exchanged little more than pleasantries. The growing impeachment case against Trump revolves around a later phone call in which the US president asks Zelensky for a “favor” by opening a corruption investigation allegedly aimed at embarrassing his possible 2020 Democratic rival Joe Biden. Unlike that controversial discussion, which took place July 25, the newly released call, held three months earlier, contains no mention of the Biden family. Instead, Trump congratulates the just elected Ukrainian president, who in turn tries to persuade his US counterpart to attend the upcoming inauguration.