From CBS News:
Washington — The diplomatic official who allegedly overheard President Trump ask about the status of “investigations” soon after his July phone call with the Ukrainian president is expected to appear before House lawmakers for a closed-door hearing on Friday.
David Holmes is the staffer referenced by diplomat Bill Taylor in testimony before the House Intelligence Committee on Wednesday, three sources familiar with the matter tell CBS News. Holmes is a counselor for political affairs at the U.S. embassy in Kiev, according to the embassy’s website.
At the first public hearings of the impeachment inquiry, Taylor testified that a member of his staff, whom he did not name, was with U.S. Ambassador to the E.U. Gordon Sondland at a restaurant on July 26 when the ambassador placed a call to Mr. Trump.