Attorneys for the Palestinian activist Mahmoud Khalil have asked a federal judge to immediately release him on bail, or else transfer him to New Jersey, where he can be closer to his wife and newborn son.

Mahmoud Khalil’s hopes of being freed on bond as he continues fighting the Trump administration’s efforts to deport him were dashed Friday, despite a judge saying the government could no longer hold Khalil on the premise that his presence in the country is against the national interest.

Mr. Khalil, a legal permanent resident, has been held in Louisiana for more than three months. The judge suggested he could be released as early as Friday unless the government successfully appeals.