Both. When Jorge W. Bitch, err Bush got in office he said "ya'll take a break y'hear. Open up them thar barndoors and let my Mexican brothers in. If I bring millions more of then thar folks into the Yewnited States and give them a visa and handout them thar good ole boys will in turn vote for me. And then I have supports for my war on that thar Yankee bastard Hitler."
It seems he feels since they'll work for under minimum wage, and are so "hard working" they deserve OUR jobs more then US. Afterall, lower wages means the Republican upper class makes more money, the Republican greedy NON UNION businesses make a killing, the Unions get screwed, and the American PEOPLE get screwed. And as an added bonus he gets all of their votes, because as fucking stupid as they are, even THEY know you don't bite the hand that feeds(read: gives you a fucking handout) you.