US authorities arrested 538 migrants and deported hundreds in a mass operation just days into President Donald Trump’s second administration, his press secretary said late on Thursday. “The Trump Administration arrested 538 illegal immigrant criminals,” Karoline Leavitt said in a post on social platform X, adding “hundreds” were deported by military aircraft. “The largest deportation operation in history is well underway. Promises made. Promises kept,” she said. Trump promised a crackdown on illegal immigration during...