President Barack Obama bids farewell to Gen. Lloyd Austin III at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America’s combat mission in Iraq.

President Barack Obama bids farewell to Gen. Lloyd Austin III at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America's combat mission in Iraq.

President Barack Obama greets troops after delivering remarks at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America’s combat mission in Iraq.

President Barack Obama greets troops after delivering remarks at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America's combat mission in Iraq.

President Barack Obama talks with troops backstage before participating in a roundtable discussion at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America’s combat mission in Iraq.

President Barack Obama talks with troops backstage before participating in a roundtable discussion at Fort Bliss in El Paso, Texas, Aug. 31, 2012. The President traveled to Fort Bliss to mark the two-year anniversary of the end of America's combat mission in Iraq.

President Barack Obama shakes hands with people in the crowd following his remarks on immigration reform at Chamizal National Memorial Park in El Paso, Texas, May 10, 2011.

President Barack Obama shakes hands with people in the crowd following his remarks on immigration reform at Chamizal National Memorial Park in El Paso, Texas, May 10, 2011.