NPR Staff

In public testimony, the top diplomat for the U.S. in Ukraine described a conversation, heard by a member of his staff, between the president and Gordon Sondland, the U.S. ambassador to the EU.

Croft worked on the National Security Council. Her transcript is among those released by House investigators ahead of the first open hearings of the inquiry.

Anderson served as special adviser for Ukraine negotiations under U.S. envoy to Ukraine Kurt Volker from 2017 through July 12.

House investigators spoke with Laura Cooper, deputy assistant secretary of defense, in October. Cooper is responsible for policy toward Russia and Eastern Europe.

Lt. Col. Alexander Vindman is a foreign affairs expert who serves on the National Security Council. He has been described as having told investigators he worried immediately about the Ukraine affair.

Hill, a well-known specialist on Russia, was said to have told House investigators that she objected to the Ukraine pressure plan — as did her then-boss, John Bolton.

The leader of the State Department's European and Eurasian Bureau was described as having told House investigators that the White House deputized "three amigos" to handle Ukraine policy.

Taylor, brought in to run the U.S. mission in Kyiv after the previous ambassador was recalled early, described a White House strategy to pressure Ukraine in exchange for political help.

The former top aide to Secretary of State Mike Pompeo talked behind closed doors with House investigators about the Ukraine affair and why he resigned from his post.

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