Four witnesses will appear in tomorrow’s public hearings — three of whom listened directly to the July phone call between President Trump and Ukraine’s president that is now at the center of the impeachment inquiry. Plus, impeachment investigators are looking into whether Mr. Trump lied to Robert S. Mueller III.“The Latest” is a new series on the impeachment inquiry, from the team behind “The Daily.” You can find more information about it here. Unlock full access to New York Times podcasts and explore everything from politics to pop culture. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify.