This must be a deliberate strategy on his part. I've heard him speak at length on his radio program about what Bush was doing wrong when it came to illegal immigration, and he has a clear proposal for illegal immigration, so I know he is familiar with it.
It may be an attempt to not let the press sidetrack him from the points he wants to emphasize, which clearly seems to be economics.
“I’ve heard him speak at length on his radio program about what Bush was doing wrong when it came to illegal immigration, and he has a clear proposal for illegal immigration, so I know he is familiar with it.”
I’m glad to hear that, but if anyone from his camp sees this, I hope they tell him to address illegal immigration, even if it’s the nutshell version, imho.