The Republican presidential hopefuls are debating how to deal with the nation's illegal immigrants, differing on how to deal with millions of people already in the United States.
Former House Speaker Newt Gingrich said Tuesday that he wouldn't "expel" those who have come illegally but have made lives in the U.S. He says that the GOP cannot call itself a party for family when it separates parents from their children born in the U.S.
Rep. Michele Bachmann says that allowing illegal immigrants to stay is a form of amnesty. She and former Massachusetts Gov. Mitt Romney say benefits for illegal immigrants attract others.
But Romney adds he wants to encourage immigration, especially among those educated at U.S. colleges.
Texas Gov. Rick Perry says the priority should be securing the border.