Source: Vindman testified White House lawyer told him not to talk about Trump's Ukraine call; New poll: Sharp partisan divide on Trump impeachment; Beto O'Rourke drops out of 2020 presidential race

From The Situation Room with Wolf Blitzer and Pamela Brown CNN Podcasts

Pelosi: Public impeachment hearings could start this month; Report: Trump refuses to defend Chief of Staff in interviewTo learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices