"Does he even have a known e-mail address?"
Try Karl_Rove@evilgenius.com :-)
I have no idea what his email is. I would snail mail a collection of the DUmmis Funnies to him, maybe once a week, care of the White House. UPS or Fed Ex. Seriously, I would.
vice.president@whitehouse.gov
I know Lynn Cheney plays on the web a lot and I wouldn't be surprised if she's a Freeper....