However, since the President's proposal to legalize illegal aliens rewards both them and their unlawful employers, and since this Administration hasn't been especially diligent in prosecuting such employers, nor has it pressed for a mandatory verification of employees' rights to work, it's not reasonable to assume that these will suddenly become priorities if only millions of illegal aliens were to be legalized.
"and since this Administration hasn't been especially diligent in prosecuting such employers, nor has it pressed for a mandatory verification of employees' rights to work,"
as opposed to which previous administration that has ?
I don't see Congress passing all sorts of new laws to control this - Bush is providing a plan where noone else has.