Here's a link to front page dailykos dairy on this subject:
It's the Metaphor, Stupid!: Cheney story bigger than you think
by thereisnospoon {Mon Feb 13, 2006}

And here's one post from that dairy:

"It's closer than metaphor with Cheney.

It's evidence of character.

Incompetent, bloodthirsty, irresponsible, reckless, degenerate, cloistered and evasive.

But, yes, a metaphor for the Bush administration"
-by howth of murph on Mon Feb 13, 2006