Immigration. Sean has a heavy post on the immigration issue, linking to Zenpundit.
The WSJ, which is pro-immigration, had a poem on the issue by Ray Bradbury, of all people, that you can read here.
I think the President's approach is a good one. I also believe (and I know that this will get some criticism) that Mexicans are a special category of people in the immigration debate for reasons that I won't describe in this post.