several key witnesses about the president's efforts to persuade ukraine's leader to investigate former bice president joe n, and his son. meanwhile, on tuesday, 12 candidate squared off in a democratic residential debate, held in ohio. reflecting her surge in the polls, this time it was elizabeth warren facing a tax from her rivals. especiallyover her support for medicare for all. she refused say ifshe would raise taxes on the middle class, to pay for it. >> joining me now, senior editor for politics and t government, scaver. joining sh via skype from the nation's capital, is tall coping, the washington correspondent for the san francisco chronicle. welcome to you both. >> thank you. >> let's start with you, scott. you were in washington this week and you spoke with several members of california's congressional delegation, several of them are players in this impeachment u quiry, what did learn? >> adamis of course leading the charge along with nancy pelosi, and he is the chair of committee, a we with him after a long meeting he had with the speaker. he has become the rget of republicans and