I think the Senate should instruct the Sergeant at Arms to have Nadler present and available for questioning, that's fucking bullshit, after what he has stated and done, he can choose to not attend.

I think the Senate should instruct the Sergeant At Arms to have Nadler present and available to answer questions. It is utter bullshit he can present a fictitious case against the President then opt out of answering the Senators questions. Obviously he knew when constructing this debacle his wife had cancer. No excuses, if he not present, he must resign immediately.