GOP Representative John Ratcliffe questioned any assertion that Ukraine suspected military aid was being withheld on July 25. The questioning came after Laura Cooper, the deputy assistant secretary of defense for Russia, Ukraine and Eurasia, noted in her opening statement that her staff showed her emails from the State Department, one of which was received just hours after the July 25 call between President Trump and Ukraine President Volodymyr Zelensky, noting concerns about security assistance. Source