President Barack Obama speaks to troops, service-members and military families at the 1st Aviation Support Battalion Hangar at Fort Bliss ,Friday, Aug. 31, 2012, in El Paso, Texas. (AP Photo/Tony Gutierrez)
President Obama stops to greet campaign workers at the Obama for America field office in Charlottesville, Va., on Wednesday, Aug. 29, 2012. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama speaks during a campaign stop in Ames, Iowa, Tuesday, Aug. 28, 2012. The president's event in Ames, home of Iowa State University, is part of a tour through college towns. (AP Photo/Nati Harnik)
President Barack Obama walks across the South Lawn of the White House in Washington after his arrival from Camp David on Marine One helicopter, Sunday, Aug., 26, 2012. (AP Photo/Pablo Martinez Monsivais)
President Barack Obama waves as he walks across the South Lawn of the White House after returning from Camp David on Marine One helicopter, Sunday, Aug., 26, 2012. (AP Photo/Pablo Martinez Monsivais)
Republican Rep. Lamar Smith, chairman of the House Judiciary Committee, is charging that the Obama administration has “falsified” deportation records to artificially boost numbers by adding Border Patrol apprehensions to the total. (Associated Press)