A Foreign Service officer says he understood that the use of the word "Burisma" was code for "Bidens."
David Holmes is testifying before a House committee in the impeachment inquiry into President Donald Trump.
Other witnesses testified they did not realize that when Trump allies and others mentioned they were seeking an investigation into Burisma, a Ukrainian gas company, that they meant an investigation into the Bidens. The son of former Vice President Joe Biden sat on the board of Burisma.
But Holmes says others working on Ukraine issues would recognize the connection between the two.
The inquiry is centered on whether Trump wrongly held up military aid for Ukraine until the new president agreed to investigate the Bidens and a debunked theory that Ukraine had meddled in the 2016 election.