[pissant]

Save onto your computer, open it and zoom by 200% or so. Look at the background around the typing and tell me what you see.

[StevieJ]

I see jpeg compression artifacts

[Popman]

Look at the background around the typing and tell me what you see.

Looks like a cut and paste job, but I'm far from the expert.

Even if it is a fake, which I would not be surprised at all, since the source is the Daily Kos

Just how are you going to prove it a fake?