the public hearings and the start of the sondland testimony in the morning. thank you for being here with us tonight and good night from our nbc news headquarters here in new york. it's another day in the public impeachment hearings, and this morning, we may hear from the most anticipated witness yet, eu ambassador gordon sondland. he may be one of the few witnesses able to confirm that president trump wanted ukraine to investigate the bidens in exchange for military aid. and has testimony follows a marathon day on capitol hill. we heard from four witnesses who delivered testimony that was deeply damaging to the president's case that the july 25th phone call with the leader of ukraine was perfect. good morning, everybody.