While I am more than happy to dance on Rumsfeld's tomb, I am sad to see Bolton getting the shaft (Yahoo). The Yahoo article and other sources I've found seem to indicate that people at the UN like working with Bolton and see him as someone who is capable of reforming the United Nations.
Bolton's main fault is that he is an outsider who hates seeing the abuse of the United Nation's by powerful insiders. Bolton's gruff personality along with his ability to see through BS laid on by the insiders is precisely what this world needs; if we wish to affect reform of the United Nations. Denying the nomination shuts down the possibility of reform for the foreseeable future.
Which, I guess is what the corrupt political machine of the far left wants.
IMHO we need to listen more to the gruff like Bolton and avoid the lure of slick insiders like Rumsfeld.