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 by Khalil, a legal permanent U.S. resident and graduate student who served as spokesperson for campus activists last year during large demonstrations against Israel’s treatment of Palestinians and the war in Gaza.

Rather, Rubio wrote Khalil could be expelled for his beliefs.