According to Center for Immigration Studies (CIS) legal policy analyst Jon Feere, who testified before the House Judiciary Committee’s Subcommittee on Immigration and Border Security in April 2015, between 350,000 and 400,000 children are born annually to an illegal-alien mother residing in the United States — as many as one in ten births nationwide

As of 2010, four out of five children of illegal aliens residing in the United States were born here — some 4 million kids. Reporting that finding, the Pew Research Center noted that, while illegal immigrants make up about 4% of the adult population, “because they have high birthrates, their children make up a much larger share of both the newborn population (8%) and the child population (7%) in this country.” According to CIS, 71% of illegal-alien headed households with children received some sort of welfare in 2009, compared with 39% of native-headed houses with children. Illegal immigrants generally access welfare programs through their U.S.-born children, to whom government assistance is guaranteed. Additionally, U.S.-born children of illegal aliens are entitled to American public schools, health care, and more, even though illegal-alien households rarely pay taxes. The short-term cost of “anchor babies” was revealed a decade ago in the Journal of American Physicians and Surgeons. “‘Anchor babies’ born to illegal aliens instantly qualify as citizens for welfare benefits and have caused enormous rises in Medicaid costs and stipends under Supplemental Security Income and Disability Income,” wrote medical attorney Madeleine Pelner Cosman. In 2003 in Stockton, California, 70% of the 2,300 babies born in San Joaquin General Hospital’s maternity ward were anchor babies, and 45% of Stockton children under age six are Latino (up from 30% in 1993). In 1994, 74,987 anchor babies in California hospital maternity units cost $215 million and constituted 36% of all Medi-Cal [California’s Medicaid program] births. By 2005, they accounted for substantially more than half. Measures such as the 1986 Emergency Medical Treatment and Active Labor Act, which requires hospital emergency departments to treat all patients with an “emergency” (an infinitely malleable term), regardless of documentation or ability to pay, have facilitated the abuse of American health care by illegal aliens. U.S.-born children of illegal aliens can sponsor the immigration of family members once they come of age. At 18, an “anchor baby” can sponsor an overseas spouse and unmarried children of his own; at 21, he can sponsor parents and siblings. There may be a long waiting period before that legal benefit is of use. But it’s a fact that illegal aliens with American-born children are much less likely to be deported, and that policy has been effectively enshrined in law with Obama’s Deferred Action for Parents of Americans and Lawful Permanent Residents (DAPA) policy, which would effectively grant amnesty to some 5 million illegal aliens, on top of the 2 to 3 million granted amnesty under his Deferred Action for Childhood Arrivals (DACA) policy. (DAPA is currently under scrutiny in the courts.) But “anchor babies” are a largely preventable phenomenon, mainly by simply enforcing current immigration laws. Stopping illegal immigration at the border, and instituting an actually effective visa-tracking system to crack down on overstays, would do much to discourage efforts to take advantage of American largesse.