Robert Rector, author of a Heritage Foundation report on immigration amnesty, right, watches as Jim DeMint, president of the Heritage Foundation, speaks during a news conference at the Heritage Foundation Monday, May 6, 2013, in Washington. The Heritage Foundation presented a study that immigration legislation would cost taxpayers $6.3 trillion to provide government benefits for millions of people now living in the U.S. illegally. Supporters of the legislation call the study deeply flawed. (AP Photo/Evan Vucci)