4 officials testify publicly in the impeachment inquiry on Tuesday. Here's how to watch

Jeanine Santucci, USA TODAY

WASHINGTON — Week two of public hearings in the impeachment inquiry of President Donald Trump kicks off Tuesday, with four officials testifying about their knowledge of U.S. policy in Ukraine.

Trump is accused of pressuring the foreign government to open investigations into domestic political rivals, in exchange for a White House meeting between the two leaders and military aid.

The first set of testimony is set to begin at 9 a.m. ET, and will consist of questioning from both Republicans and Democrats on the House Intelligence Committee.

Lt. Col. Alexander Vindman, a National Security Council expert on Ukraine, will appear Tuesday morning alongside Jennifer Williams, an NSC aide assigned to the office of Vice President Mike Pence.

Both officials listened in on the July 25 phone call between Trump and Ukraine President Volodymyr Zelensky in which Trump asked for "a favor" while discussing investigations into former Vice President Joe Biden and his son Hunter Biden.

In the afternoon, former U.S. special envoy to Ukraine Kurt Volker and NSC Senior Director for Russia and Europe Tim Morrison will appear before the Intelligence Committee. 

All four officials have already given testimony behind closed doors, but this will be the first time the public hears from them in the public phase of the impeachment inquiry.

You can watch the public hearings live through a stream on USATODAY.com, and catch up with live blog coverage from USA Today's D.C. bureau staff.

More: How to stay updated on USA TODAY's impeachment coverage

This article originally appeared on USA TODAY: Impeachment hearing schedule: How to watch Vindman, Volker, Morrison