Lt. Col. Alexander Vindman and Jennifer Williams, an aide to Vice President Pence,...

On Tuesday, the House's ongoing impeachment investigation held its third day of public hearings -- featuring National Security Council Ukraine expert Alexander Vindman and Jennifer Williams, a member of Vice President Mike Pence's staff.

Jennifer Williams, an aide to Vice President Pence, testified publicly on Tuesday in the House's...

Vindman and Williams directly listened in on the phone call at the center of the inquiry. Volker and Morrison witnessed Trump's shadow Ukraine policy.

Vindman and Williams directly listened in on the phone call at the center of the inquiry. Volker and Morrison witnessed Trump's shadow Ukraine policy.

It's first time the public will hear from witnesses who listened to the July 25 Trump-Zelensky call.

The House Intelligence Committee is holding its third public hearing as part of the House Democrats' impeachment inquiry.

Live coverage from the Trump impeachment hearing during Alexander Vindman and Jennifer Williams’ public testimonies about Ukraine dealings on Tuesday.

The impeachment hearing enters another week. Four impeachment inquiry witnesses — Jennifer Williams, Lt. Col. Alexander Vindman, Kurt Volker and Tim Morrison — will testify publicly. Follow here for the latest.

The impeachment hearing enters another week. Four impeachment inquiry witnesses — Jennifer Williams, Lt. Col. Alexander Vindman, Kurt Volker and Tim Morrison — will testify publicly. Follow here for the latest.