The House Intelligence Committee will hear from Fiona Hill, the former National Security Council senior director for Europe and Russia, and David Holmes, a political counselor at the U.S Embassy in Kyiv.

David Holmes and Fiona Hill, two central witnesses to the pressure campaign in Ukraine, plan to testify publicly Thursday in the impeachment inquiry into President Donald Trump.

Hill, a former National Security Council official, previously testified about national security adviser John Bolton's concerns about the pressure campaign.

Holmes, a State Department official in the U.S. Embassy in Kyiv, overheard Trump ask U.S. Ambassador to the European Union Gordon Sondland about “investigations” on a call.

The two are likely to shed additional light on key players and moments during the campaign to pressure Ukraine to open investigations into Trump's political rivals.

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