Lugging little backpacks, smiling immigrant children were scooped up into their parents' arms Tuesday as the Trump administration scrambled to meet a court-ordered deadline to reunite dozens of youngsters forcibly separated from their families at the border. It was the largest single effort to date to undo the effects of President Donald Trump's zero-tolerance policy of separating families who try to slip across the Mexican border into the US. Authorities gave few details on where the reunions would be held, and many were expected to take place in private. The administration faces a second, bigger deadline - July 26 - to reunite perhaps 2,000 or so older children who were also separated from their families at the border in the past few months. Late last month, US District Judge Dana Sabraw in San Diego set a 14-day deadline to reunite children under 5 with their parents and a 30-day deadline for older children.