Student negotiator Mahmoud Khalil is seen at a pro-Palestinian protest encampment on the Columbia University campus in New York, April 29, 2024. (AP Photo/Ted Shaffrey, File) NEW YORK — Facing a deadline from an immigration judge to turn over evidence for its attempted deportation of Columbia University activist Mahmoud Khalil, the federal government has instead submitted a brief memo, signed by Secretary of State Marco Rubio, citing the Trump administration’s authority to expel noncitizens whose presence in the country damages U.S. foreign policy interests. The two-page memo, which was obtained by The Associated Press, does not allege any criminal conduct...