I notice you didn't answer the question.
The Bush/Brownback position on immigration is consistent with tough enforcement, it's just not consistent with the Tancredo/Buchannan anti-immigrant lunacy that, unfotunately, far too many Republicans got caught up in, and paid the price.
If you want any kind of "guest worker" program, it'll have to be Kyl/Cornyn in order to get it to pass. Arizonan's have NO problem with LEGAL immigration, as a matter of fact they are welcomed here. It's the illegals that are swamping the system. We also don't like law breakers because they have no problem with breaking OTHER laws, like having insurance when they drive cars, or paying for their doctor bills, or not taking what they want from those who worked hard for it.