Administration: 1,820 children reunited after border split

Merari Calderon, of El Salvador, lines up with her father, Alexander Calderon, left, to cross into the U.S. Thursday to begin the process of applying for asylum near the San Ysidro port of entry in Tijuana, Mexico. (AP Photo/Gregory Bull)

SAN DIEGO — The Trump administration said Thursday that more than 1,800 children separated at the U.S.-Mexico border have been reunited with parents and sponsors but hundreds remain apart, signaling a potentially long wait for anguished families.