These guys are smoking crack. Gore is generally perceived as a lunatic and there are plenty of sound bites to prove it.
A Gore comeback is laughable.
Any competent opponent would obtain video of his infamous Saudi speech and quickly paint him as an anti-American loon.
Which of course he is.
The scariest ticket I can think of is:
Gore vs. McCain
Two certifiable whack-jobs running for POTUS -- God help us all!