MICHAEL GERSON, WASH POST: He's a senator, and a possible presidential candidate, and his policy views matter. He's called for the gradual elimination of all foreign aid. Now, I've seen its effect in sub-Saharan Africa and other places. This would cause misery for millions of people on AIDS treatment. It would betray hundreds of thousands of children receiving, you know, malaria treatment. These are things that you can't ignore in a presidential candidate. This is a perfect case of how a person can have good intentions but how an ideology can cause terrible misery. He will need to explain that. This is his policy views.