I enjoy Howard Fineman's columns in Newsweek. He has a lot of insight. This week he writes:

[Immigration] is now the top concern among likely GOP voters in Iowa and No. 2 in New Hampshire and South Carolina.

Democratic strategists enjoy the "pander-rama." They think the general election can be won in the Southwest, where the ranks of Hispanic voters are swelling. They also think the angry tone of the GOP debate will turn off suburbanites, who think of themselves as tolerant and who like the cheap labor.

But Democrats need to be careful what they wish for. As the economy weakens, the immigration issue could hurt them.