Trump requested Zelensky to cooperate with Attorney General Barr and Rudy Giuliani in their investigation against Joe Biden and Hunter Biden .
A non-verbatim transcript of the Trump–Zelensky call confirmed that Trump requested investigations into Joe Biden , his son Hunter Biden , as well as a debunked conspiracy theory involving a Democratic National Committee server , while repeatedly urging Zelensky to work with Rudy Giuliani and Attorney General Barr on these matters .