A Columbia University student who was detained Thursday by federal immigration agents said in a social media post that she had been released. Her post came after New York City Mayor Zohran Mamdani said that President Donald Trump told him that she would be released imminently. “In our meeting earlier, I shared my concerns about Columbia student Elaina Aghayeva, who was detained by ICE this morning,” Mamdani posted on X, referring to his meeting in the White House on Thursday. He spoke to Trump after the meeting by phone. “I am safe and okay,” Aghayeva said, adding that she is...