From Pat Buchanan's April 26 WorldNetDaily column, titled “Whose country is this?”:

With the support of 70 percent of its citizens, Arizona has ordered sheriffs and police to secure the border and remove illegal aliens, half a million of whom now reside there.

Arizona acted because the U.S. government has abdicated its constitutional duty to protect the states from invasion and refuses to enforce America's immigration laws.

“We in Arizona have been more than patient waiting for Washington to act,” said Gov. Jan Brewer. “But decades of inaction and misguided policy have created an unacceptable situation.”

We have a crisis in Arizona because we have a failed state in Washington.

What is the response of Barack Obama, who took an oath to see to it that federal laws are faithfully executed?

He is siding with the law-breakers. He is pandering to the ethnic lobbies. He is not berating a Mexican regime that aids and abets this invasion of the country of which he is commander in chief. Instead, he attacks the government of Arizona for trying to fill a gaping hole in law enforcement left by his own dereliction of duty.

[...]

If Arizona does not get control of the border and stop the invasion, U.S. citizens will stop coming to Arizona and will begin to depart, as they are already fleeing California.

What we are talking about here is the Balkanization and breakup of a nation into ethnic enclaves. A country that cannot control its borders isn't really a country anymore, Ronald Reagan reminded us.