A study published Wednesday by the Pew Hispanic Group found that about 4 million children have at least one parent who is an illegal immigrant, roughly 7 percent of all people under 18 years old, and 79 percent of these children are American citizens because they were born here. The study also said that in 2008, about 340,000 of the 4.3 million babies born—or about 8 percent—had least one parent who was an illegal immigrant. About 85 percent of the parents are Hispanic, according to the study. This study, published by a nonpartisan group, could give new life to Sen. Lindsey Graham's recent push to repeal the 14th Amendment, which guarantees citizenship to any person born in the U.S., no matter the citizenship status of his or her parents. Graham claimed illegal immigrants come to the U.S. to "drop a child."