July 25 phone call

In August 2019, a whistleblower filed a complaint with the Inspector General of the Intelligence Community about a July 25 phone call between Trump and President of Ukraine Volodymyr Zelensky, during which Trump had pressured Zelensky to investigate CrowdStrike and Democratic presidential primary candidate Joe Biden and his son Hunter, that the White House attempted to "lock down" the call records in a cover-up. The whistleblower further stated that the call was part of a wider pressure campaign by Giuliani and the Trump administration which may have included withholding financial aid from Ukraine in July 2019 and canceling Vice President Pence's May 2019 Ukraine trip. Trump later confirmed having withheld military aid from Ukraine and offered contradicting reasons for the decision.