James McAndrews warns that clever ways of catching criminals may leave the poor behind.
Does the Constitution grant the federal government a power over immigration? If so, how, and what are its limits?
Ilya Somin says the U.S. Constitution contains no federal power to restrict immigration.
Jack Chin looks at different constitutional paths to a federal power over immigration.
John Eastman explains the case for federal authority over immigration.
Ilya Somin replies to Gabriel Chin on whether the commerce clause grants a federal power over immigration.