On the June 25 edition of MSNBC's Tucker, guest host David Shuster asked MSNBC political analyst Pat Buchanan about his description of the illegal immigration to the United States as “an invasion,” and Buchanan replied: "[E]very 20 months, we add a new Mexico in the Third World. You're going to add 30 new Mexicos by 2050, and they all know the door is open." Buchanan went on to criticize the immigration bill recently considered by the U.S. Senate: “If you grant amnesty -- and there's nothing in this bill that stops the invasion -- I think you lose the American Southwest.”

In his book State of Emergency: The Third World Invasion and Conquest of America (Thomas Dunne Books, August 2006), Buchanan also made reference to a “new Mexico,” stating on Page 245:

The crisis of the West is of a collapsing culture and vanishing peoples, as a Third World that grows by 100 million people -- the equivalent of a new Mexico -- every eighteen months mounts the greatest invasion in the history of the world. If we do not shake off our paralysis, the West comes to an end.

During his MSNBC appearance, Buchanan also said: “Look, we won World War II against Germany and Japan in three years, and these guys can't find a bunch of felons wandering around our cities?”

From the June 25 edition of MSNBC's Tucker:

SHUSTER: Pat, you describe this in your book as an “invasion.” You said yesterday on Meet the Press a couple of times that this was an “invasion.” What are you talking about?

BUCHANAN: Well, the president of the United States said he stopped 6 million people on the border in his first five years. One in 12 -- 500,000 -- had a criminal record. Those 1 in 12, those 500,000, that's equal to the size of the entire United States Army. Twelve million people in the country is more than all the Irish, Jewish, and English folks who ever came. And more than that, every 20 months, we add a new Mexico in the Third World. You're going to add 30 new Mexicos by 2050, and they all know the door is open. If you grant amnesty -- and there's nothing in this bill that stops the invasion -- I think you lose the American Southwest.

SHUSTER: Pat, how do you get the money, though, to go after 600,000 illegal immigrants and essentially deport them?

BUCHANAN: Well, 600,000 -- those are absconders. Those are people who have been ordered deported. They are felons in the United States. How can you talk about national security if you don't do it?

SHUSTER: But obviously what we're doing right now isn't working.

BUCHANAN: Look, we won World War II against Germany and Japan in three years, and these guys can't find a bunch of felons wandering around our cities? What is the matter with this government?

SHUSTER: That's right they can't. And isn't, Peter, that part of the problem?

BUCHANAN: Well, then [Homeland Security Secretary Michael] Chertoff is the problem, and President Bush is the problem.