A federal judge ruled Wednesday that the Trump administration’s effort to deport pro-Palestinian activist Mahmoud Khalil is likely unconstitutional, but the judge stopped short of freeing him from jail.

A federal judge ruled Wednesday that Mahmoud Khalil, a student activist whom the government is seeking to deport, was likely to prevail in his argument that his detention was unconstitutional. But he declined to issue a preliminary injunction in the case,

Mahmoud Khalil, a Columbia graduate, was targeted for deportation because the Trump administration said he impeded its foreign policy. He will still be held in Louisiana.