Secretary of State Mike Pompeo was on the July 25 call between President Trump and his Ukrainian counterpart that was the subject of a bombshell whistleblower complaint, The Wall Street Journal reports. The newspaper reports that Pompeo was one of the administration officials who listened in on the call, according to a senior State Department official. In the complaint, a whistleblower said top State Department official Ulrich Brechbuhl was on the call—a claim a State Department official has reportedly disputed.

The whistleblower complaint, and a subsequent memo of the call released by the White House, shows Trump asking Ukrainian President Volodymyr Zelensky to investigate unsubstantiated corruption allegations against Democratic presidential candidate Joe Biden and his son.