Thomas J. Ridge: “Either we make these effective tools or we replace them.”

While he may think he has the authority and legally, he might. He will not get and achieve the outcomes that I believe he wants and the President wants and the mayor wants, if you act unilaterally.

They may have a few arrests. They may have a few imprisonments. But they're not going to sustain that commitment and nothing in his plan -- I'm not even sure they have a plan.

I doubt if there's a Republican or Democrat today, Mayor or Governor that wouldn't contest the unilateral incursion of Federal agents without coordination with state and local law enforcement officials.

I think [a comprehensive immigration approach] will add more to border security than any number of fences we can put across the border.