return to give in-person testimony live on tv, public testimony, this week. and then this defense that we are seeing being formed by the republicans. >> yes, absolutely. this is very similar to the iran contra hearings, which i also participated in as counsel to the select committee. wherein you do a lot of depositions before the hearings. the minority attends. the majority attends. everybody gets to ask questions. and then you narrow down the list of public testimony and public witnesses that will come to the actual televised hearings. so that's exactly how this is proceeding. and this is typically how impeachments have proceeded as well. in the nixon impeachment, we went out and did depositions and then we selected those witnesses that were key and had key information for the impeachment itself. i would also mention that the congressional committees can give immunity to witnesses. and this is something not many people have discussed.