My Political Opinion
It should be recognized that this has been a very contentious time and emotions about events have been intense. I expect the resulting political effect to manifest itself primarily by dividing the electorate into three groups:
1. Those passionately supporting the right to life of Terri Schiavo. These people, to a great extent, are single issue voters - or at least comprise a very narrowly defined issue set. They will use this situation to build not only their voting preferences in upcoming elections, but also to formulate strong political activism around a very few issues. It represents a new and powerful dynamic in American politics.
2. Those passionately supporting the right to die of Terri Schiavo. They will, in general, be joined by those supporting Michael Schiavo's right to choose for Terri. They will probably assimilate these perspectives into other political beliefs and actions. They were not, in my opinion, motivated by the events - they were already politically active and effective. The situation does little, politically, to add to their clout.
3. Those not passionate about either side. They are curious, maybe concerned one way or the other, and want to watch the "Reality TV" of the coverage. They may or may not be swayed by media stories. By media, I include them all, including blogs. They will "forget" the whole thing and move on to other issues more pertinent to them. The result for them is no effect. Ironically, it is this group that makes up most of the "Americans polled", which is why it is silly to believe the poll results will be reflected in upcoming elections.
That's my two cents worth.
But I'm just a Right Wing Nut Job