I found this over on De Regno Christi.  I think it gives an appropriate Christian perspective on this whole issue:

W.H. Chellis

President Bush has secured his legacy. The promise of immigration reform has degenerated into amnesty. How should Christians think about the issue?

This is an expert from the Understanding the Times Committee Report to the Reformed Presbyterian Synod in 2006. The controversial report was recieved as information. I am the author.

“Wars and Rumors of War: Border Security

While American soldiers are fighting in the Middle East, and army of illegal immigrants is invading the homeland. Of course, the invasion of our southern border is not a military conquest but it does have grave cultural and economic implications. The RPC recognizes the moral dilemma involved in the discussion.

First, as Christians, we must remember that we were strangers who dwelt in Egypt. When Israel inherited the land of promise, they were called upon to remember this history of subjection when dealing with aliens in their midst. As such, we should be tenderhearted to those in need and show liberality toward those who seek refuge.

Yet, our sympathy is moderated by the unwillingness of illegal immigrants to show respect toward the American system of ordered liberty. Radical leaders of the pro-immigration movement speak of reclaiming the southwest for Mexico. Thus, as millions of illegal aliens cross the border under the flag of Mexico, the question is not how can we deal mercifully with needy refugees, but rather how can the United States defend its historic, cultural, and linguistic heritage? The moral law of God maintains the individuals inherent right to self-defense. Do nations and cultures have no such right? Such a conclusion would appear absurd.”

A year later, I say amen.

 It is our duty as Christians to do our utmost to prevent Bush's legacy from becoming law.  Then, we must examine why our churches have allowed our country to slide into such a pit that these are the type of leaders we have.