Sounds like this only happened a few days before the election, and that the staff was pretty tight-lipped about it. It also seems that
The Oregonian has been reporting that something odd was going on for awhile, and that his outbursts and strange behavior were public knowledge for some time. Doesn't quite strike me as a massive left-wing conspiracy, but I think that this view will be subject to what baggage the viewer is carrying.
http://www.oregonlive.com/politics/i..._staffers.html