Article Photos: Obama on immigration overhaul: 'Now is the time'

President Barack Obama waves as he arrives to speak about immigration at Del Sol High School, Tuesday, Jan. 29, 2013, in Las Vegas. (AP Photo/Carolyn Kaster)

President Barack Obama waves as he arrives to speak about immigration at Del Sol High School, Tuesday, Jan. 29, 2013, in Las Vegas. (AP Photo/Carolyn Kaster)