It is hard to prove, but the evidence certainly leads in that direction.
The former Bachmann campaign official in question is Luke Hellier, previously featured on Quiche Morain here. There is no doubt whatsoever that Hellier’s commentary on the Minnesota Democrats Exposed blog, regarding editing of Jim Meffert’s Wikipedia entry was dishonest. I had not mentioned this in my earlier post at QM, but Ed Kohler of The Deets clearly and painstakingly documents that Hellier “quote mined” the Wikipedia change log to make it look like a Meffert volunteer was acting inappropriately. It turns out that the volunteer was fixing vandalism that had happened earlier on Meffert’s site.
And there is some evidence, not conclusive but … interesting … that this vandalism was carried out by Luke Hellier.
The details are complex and I would not do justice to the argument to repeat it here. Visit The Deets to learn more: @LukeHellier’s Lie of Omission Regarding Wikipedia Vandalism.