NBCUniversal Inc. November 21, 2019 11:49 am WATCH: David Holmes' Opening Statement From Impeachment Hearing David Holmes, a political counselor at the U.S. Embassy in Kyiv, offers up her opening statement during morning impeachment hearings on Nov. 21, 2019. US & World Videos 1:40 Democrats say Big Oil misled public for decades about climate change 4:14 What to expect: Previewing the 2024 Met Gala 3:37 Learning about the Art Resource Collaborative for Kids 3:25 Mother's Day gift ideas with William James Gifts 1:35 Understanding the Biden administration's plans to reclassify marijuana