ABC News accuses Obama of Oppo drop on JRE

This makes no sense at all.
According to Jake Tapper at ABC NEWS
The Obama campaign is circulating THIS Opposition Research Paper
Accusing JRE of a TON of different things.

More below the fold.........

*UPDATE

UPDATE: The Obama campaign says this document came because a local union requested information on the differences between him and his opponents.)

Circulating among Iowa labor circles, I am told, is this leaflet, which looks to be a standard opposition-research paper against former Sen. John Edwards, D-NC.

and

The cheapest shot ... that Edwards somehow has something to do with Whirlpool when the company was closing down Maytag plants in Iowa, Illinois, and Arkansas.

Why is that a cheap shot? Because the link is that Edwards worked for the controversial Fortress Hedge Fund  while it owned stock in Whirlpool as it was shutting down those plants.

But a far more direct link exists between Obama and those plants shutting down.

Well, here we go.
The last 29 days of the Iowa run up. Expect more of this.
There is NO "Obama 08" logo on it.
There is the obligatory crediting at the bottom of each page

Paid for by Obama for America, and printed in house

This makes no sense to me at all for the Obama Campaign to be doing this.
I am not naive enough that Obama and ALL of the candidates do not have oppo on their opponents, of course they do. The only difference is who releases it, and who doesn't.

The other thing in this equation is, who gains from this?
Not Obama, it makes him look like a hypocrite, as well as tying him to the Crown Family (Maytag, Plant closings in Iowa).
Not JRE, that is for sure, or maybe it does by painting him as the nice guy.( I am not saying he is responsible in any way shape or form)
This flat out stinks no matter WHO it is coming from.
Is there a leaker in the Obama Camp?
Is this yet another dirty trick?
Which of the other candidates does this help?