I didn't offer an opinion as to whether he would or wouldn't be picked, only that Gore is using his wife's mental problems as cover for the embarrassment of not being picked. Once again, you are assuming that Gore would use his wife's medical problems to limit his embarrassment for not getting the nomination. Do you have any evidence to justify that assumption?
It's not a large leap at all. Tipper would never have made this information public without his approval. They are a political team.