Personally I think many of the disputes could be resolved if we had some consistency in what is and what isn't to be said about politicians, and that is, more than anything, a structural issue with Wikipedia that probably has also been dealt with extensively in other wikis, concerning, perhaps, George Bush.  Perhaps we can should be looking there for guidance as to how the community has dealt with the issue.

Basically what we have is one camp who wants to tar Grant Devine/Brad Wall with (sourced and referenced) bad stuff, but goes and eliminates the (sourced and referenced) bad stuff written about Lorne Calvert and other figures in NDP administrations.  And we have another camp that does the opposite, and an edit war is the ultimate result.