Beginning in the 1980s, the United States embarked on a decades-long restructuring of federal laws criminalizing migration and increasing the consequences for migrants engaging in criminal activity. Today, the results are clear: a law enforcement apparatus and immigration prison system propelled by a vast infrastructure of laws and policies. The presidency of Donald Trump augmented this trend and brought it to public attention. But lost in President Trump's unique flair is an ideological commitment shared by multiple presidential administrations and legislators from both major political parties to use the criminal justice system and imprisonment to sift migrants. Examining these ideological attachments reveals Trump-era policies to be the outer edge of decades-long trends rather than extreme and momentary deviations from the norm.