In light of President George W. Bush’s January 7, 2004 announcement of a new immigration initiative, the Pew Hispanic Center provided information about attitudes towards immigrant and immigration policy, and estimates of the size of the undocumented population in the United States. Sources for the data are the National Survey of Latinos, conducted in 2002 jointly by the Pew Hispanic Center and the Kaiser Family Foundation, and the Center’s March 2002 report entitled “How Many Undocumented: The Numbers Behind the U.S.-Mexico Migration Talk.”