Immigration Activists Rally Against Challenges To Obama's Executive Order On Immigration

NEW YORK, NY - MAY 19: Activists calling for federal judges to reject challenges to President Obama's "Deferred Action for Parents of Americans and Lawful Permanent Residents" (DAPA) program drop off letters stating their demands in a mock mail box outside the Jacob K. Javits Federal building, where naturalization ceremonies take place, on May 19, 2015 in New York City. DAPA, which has come under fire from conservatives, would create a system which would stop the deportation of certain immigrants who entered to U.S. illegally. (Photo by Andrew Burton/Getty Images)