The person asking that question is... "Pitchfork" Pat Buchanan, and the question is printed in Human Events:

...A president like Teddy Roosevelt would have led the Army to the border years ago. And if Fox did not cooperate, T.R. would have gone on to Mexico City. Nor would Ike, who deported all illegal aliens in 1953, have stood still for this being done to the country he had defended in war.

What are these Bush Republicans afraid of? Dirty looks from the help at the country club?

The question of whether America is going to remain one nation, or whether our Southwest will wind up as a giant Kosovo -- separated by language and loyalty from the rest of America -- is on the table...

...George Bush is chief executive of the United States. It is his duty to enforce the laws. Can anyone fairly say he is enforcing the immigration laws? Those laws are clear. People who break in are to be sent back. Yet, more than 10 million have broken in with impunity. Another million attempt to break in every year. Half a million succeed. Border security is homeland security. How, then, can the Department of Homeland Security say America is secure?

Who can guarantee that, of the untold millions of illegals here, and the scores of thousands ordered deported for crimes who have disappeared into our midst, none is a terrorist waiting for orders to blow up a subway or mall and massacre American citizens?

...Twice, George Bush has taken an oath to "preserve, protect and defend the Constitution of the United States." Article IV, Section 4 of that Constitution reads, "The United States shall guarantee to every State in this Union a Republican Form of Government, and shall protect each of them against invasion."

Well, we are being invaded, and the president of the United States is not doing his duty to protect the states against that invasion. Some courageous Republican, to get the attention of this White House, should drop into the hopper a bill of impeachment, charging George W. Bush with a conscious refusal to uphold his oath and defend the states of the Union against "invasion."