A federal judge on Friday sided with the Trump administration in the ongoing legal fight over the detention of Columbia University graduate student and pro-Palestinian activist Mahmoud Khalil.

The Trump administration is keeping Columbia University alumnus Mahmoud Khalil detained, despite a judge's Wednesday order for his release. Why it matters: The administration's tug-of-war with courts over Khalil,

A judge says the Trump administration can detain Columbia activist Mahmoud Khalil for allegedly lying on his green card application — after ruling he can't be jailed for foreign policy reasons.