On the other hand the behavior of the republicans questioning him has been a disgrace culminating in personal attacks, I would call the representative who brought his personal life into it the nutball
Personal attack has become the calculated strategy. It prevents discussion of an issue.
The guy was removed from the case because of the appearance of bias, and that would contaminate the investigation. If he hadn't been removed, it would imply much more. However, the Republicans would be making the same argument. Oops, I take that back. Everyone in charge of the investigation is a Republican.
But, the whole point of the personal attack is to discredit the entire investigation. Meanwhile, how many people have been indicted, convicted, fined, and or incarcerated because of the investigation so far? However, representatives of the WH on FOX tv (not necessarily FOX news) will claim that the investigation should end. Hey Ken, personal attacks have been leveled at anyone involved in the investigation (into Russian or other interference in the 2016 election and the election process). We had a commission for a year investigating voter fraud.
"A man is rich when he has time and freewill. How he chooses to invest both will determine the return on his investment."