Immigration
The former Senator argues that it is just not realistic to round up the twelve million illegal immigrants in the country and ship them out in one day. Instead he says America should have a realistic means of giving the illegal immigrants aspirations of citizenship without affecting the rights of legitimate immigrants who are queuing up for citizenship.
JMO, but giving illegals aspirations of citizenship can entail removing the safe environment in which they now illegally exist....
If they leave voluntarily and peacefully, then they may be considered no earlier than 12 months later for a normal legal US entry and visas and the legal path to citizenship if they qualify and pass the background checks. If we have to round them up and deport them, then they are on a never consider list for the rest of their lives. And, OBTW, in that scenario before we deport them, they will work those 12 months on helping build the real fence on the border.