A flurry of recent federal court rulings have stalled, for the moment, the Trump administration’s efforts to deport as many as one million undocumented migrants this year, as judges increasingly determine that individuals cannot be removed from the country without due process.

The case raises questions about the Trump administration's adherence to limits set by the Supreme Court. It carries the risk of a significant clash between the two coequal branches of government and potentially a full-blown constitutional crisis.