The Trump administration maintains Khalil lied on documents as he applied for permanent U.S. residency and has argued he supports Hamas.
Amy Greer, one of Khalil's attorneys, said they "moved one step closer to vindicating Mr. Khalil's rights by challenging his unlawful detention."
Mohsen Mahdawi, who was arrested by ICE during his citizenship interview, was present during the hearing.
Mohsen Mahdawi's was arrested after attending his naturalization interview on Monday, his attorney told ABC News.
Columbia University activist Mahmoud Khalil appeared before an immigration judge in Louisiana on Friday who decided he can be deported.
Detained Columbia University graduate student Mahmoud Khalil will remain in federal immigration custody a while longer.