A federal judge on Thursday blocked the Trump administration's efforts to deport at least 600 Guatemalan children, efforts the administration said were to reunite them with their parents.

Judge Timothy J. Kelly, a Trump appointee, wrote that the government had given dubious justifications for removing the children that “crumbled like a house of cards.”

A federal judge on Thursday blocked the Trump administration's efforts to deport at least 600 Guatemalan children, efforts the administration said were to reunite them with their…