The end of our sovereignty. And no elected official in a high enough office will be able to stop it. It's scary what's happening before our eyes.
The politician who takes hold of this problem (NOT Guest Worker) and brings back our nation's sovereignty by implementing the removal of illegal aliens from ALL social programs in this country (social security, disability, education, real estate, etc.) would garner the respect of a majority of American citizens IMHO. It appears we'll never be able to remove them all, but removing incentive can't hurt and would serve to strengthen our diminishing social security funds. Some say the illegals pay into it, but rest assured no one mentions the staggering amount they are taking out of it.