Rush was simply quoting Fox himself. In a book, Fox stated that when he appears before Congress, he sometimes doesn't take his meds so that his symptoms appear worse then when controlled by meds.
Did you see the clip of him swaying so uncontrollably in the commercial he made? Did you also see the clip of him making a campaign appearance YESTERDAY in which he DIDN'T sway so much?
Rush stated that he was acting, or off his meds. To back up that assertion he quoted none other than Micheal J. Fox himself, stating that this is EXACTLY what he does to make a point.
You can be appalled by Rush's comments, but considering the juxtaposition between his symptoms for the camera, and his symptoms in real life, AND considering his own comments on this subject, I have to agree with Rush:
He was acting, OR, he was off his meds (by his own choice to emphasize the point).
Simply put, there is ample evidence that Micheal J. Fox's symptoms, when controlled by medications, are not routinely as bad as those displayed for the camera. And that is a valid observation to make.
Even Fox himself joked about it yesterday, "It's ironic, given some of the things that have been said in the last couple of days, that my pills are working really well right now."
It's fair to ask: is it really ironic? I do feel for Fox, but that does not entitle him to exaggerate his condition to make a political point.
In the end, the debate itself is over. From the moment it was observed that adult stem cells have plenipotent capability, the dangers of embryonic stem cells doomed them to futility. Despite their dangerous tendencies to grow widely and be subject to rejection, plenipotency made embryonic stem cells an attractive draw. Finding that plenipotency in adult cells, without the drawbacks of embryonic ones, moved the scientific motives beyond embryonic cells. The only true advances being made (and some advances ARE being made) in stem cell research is in adult stem cells.
The only reason this remains a debate is because it serves as a proxy argument for abortion, cheapening the value of unborn life. The discussion of embryonic stem cells in now a political one, and not a true scientific endeavor.