The Arizona immigration law was shot down. I don't think our elected officials fully grasp how polarized Americans are about this. The anger is genuine, and judging from what I read on blogs like Calculated Risk, the anger about 30 million illegals is felt on both sides of the political spectrum.
We have a really big problem on our hands, and the people we elected into office aren't doing anything about it. What we get is either "send 'em back and build a Berlin Wall" or "comprehensive immigration reform," whatever the hell that means.
I doubt they will do anything about it until something really bad happens.