Secretary of State Mike Pompeo was among administration officials who listened in on the July 25 phone call between President Trump and Ukrainian President Volodymyr Zelensky, a senior State Department official said Monday, a disclosure that ties the State Department more closely to the House impeachment inquiry.

Mr. Pompeo’s participation on the call hasn’t been previously reported. Last week, a State Department official disputed the contention in a complaint filed under federal whistleblower laws by a Central Intelligence Agency officer that another top State Department official, counselor Ulrich Brechbuhl, listened in on the call.

House Democrats have opened an impeachment inquiry focused on Mr. Trump’s dealings with Ukraine, and lawmakers are focusing on the whistleblower complaint and a record of the call released by the administration.