[592] Trump then confirmed that he withheld military aid from Ukraine, offering contradictory reasons for the decision.[593][594] On September 25, the Trump administration released a memorandum of the phone call which confirmed that, after Zelenskyy mentioned purchasing American anti-tank missiles, Trump asked him to discuss investigating Biden and his son with Giuliani and Barr.[590][595] The testimony of multiple administration officials and former officials confirmed that this was part of a broader effort to further Trump's personal interests by giving him an advantage in the upcoming presidential election.[596] In October, William B. Taylor Jr., the chargé d'affaires for Ukraine, testified before congressional committees that soon after arriving in Ukraine in June 2019, he found that Zelenskyy was being subjected to pressure directed by Trump and led by Giuliani. According to Taylor and others, the goal was to coerce Zelenskyy into making a public commitment investigating the company that employed Hunter Biden, as well as rumors about Ukrainian involvement in the 2016 U.S. presidential election.[597] He said it was made clear that until Zelenskyy made such an announcement, the administration would not release scheduled military aid for Ukraine and not invite Zelenskyy to the White House.