He's great for Paco and Jorge, illegally here from El Salvador. Not so good for Douglas and Trey born in the US looking for a decent paying labor job. Not so good for Mary and Ann, nurses in AZ working 60 hours per week providing free healthcare to Paco's pregnant wife and 3 kids. Not so good for the people who pay taxes and large medical insurance bills, or thier kids who won't be able to collect what they paid into Social Security because Mel Martinez gave it all away to Paco, Jorge and thier families.
I'd focus on socialism, not immmigration as it is the root of the problem. FYI:
http://www.neoperspectives.com/Amnesty_From_Government.htm