United States National Security Council
Several top officials with potentially valuable knowledge have refused to come to Capitol Hill.
Lt. Col. Alexander Vindman said he believes Trump offered Ukraine little choice if it wanted to receive U.S. military aid.
Army Lt. Col. Alexander Vindman and adviser Jennifer Williams heard the July 25 phone call for themselves.
Tim Morrison, a former National Security Council aide, told impeachment investigators about revealing conversations with Ambassador Gordon Sondland.
WHAT'S HAPPENING
Transcripts of testimonies from Tim Morrison and Jennifer Williams provide fresh details for the impeachment inquiry.
John Eisenberg is one of four White House witnesses subpoenaed for House testimony Monday. None of them are expected to appear.
The Ukraine expert reportedly testified that the NSC's top legal adviser told him not to share his concerns with anyone.
The former national security adviser was openly troubled by Trump's approach to Ukraine.
Christopher Anderson, a State Department official, will testify that he was warned of Rudy Giuliani’s back-channel involvement in Ukraine policy.
Army Lt. Col. Alexander Vindman, the top Ukraine expert on the National Security Council, is set to testify in the impeachment inquiry against Trump.