Wiki deals with the US congress

I'm sure you've all heard of a Senator's aid editing wiki's to make their guy sound great - a bit Orwellian if you can delete bits of history but Wiki is freely editable, how does it resolve a negative information campaign? With another wiki page...
Not sure how this will pan out but it's interesting to see yet another community vs authoritative source battle.
I hope the community wins, it's our shared myths that make us who we are.