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.

“Mahmoud Khalil was detained in retaliation for his advocacy for Palestinian rights,” Amy Greer, associate attorney at Dratel + Lewis and part of his legal team, said in a statement to The Independent...