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WATCH: Vindman says request to investigate Bidens was in return for Ukraine White House meeting

Lt. Col. Alexander Vindman says he heard envoy Gordon Sondland describe “specific investigations” as a requirement for Ukraine’s president to get a coveted White House visit.

Vindman testified publicly on Nov. 19 before a House committee in the impeachment inquiry into President Donald Trump. Watch in the player above.

Testifying at Tuesday’s impeachment hearing, Vindman said the conversation took place at the White House on July 10.

He says Sondland referred to “specific investigations that Ukrainians would have to deliver in order to get these meetings.” Those desired investigations were into the 2016 U.S. presidential election and also into Democratic presidential candidate Joe Biden and his son.

Vindman says he told Sondland that the request for investigations was inappropriate and had nothing to do with national security policy.

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