Unlike Mr. Obama’s administration, Mr. Trump’s is treating all people who have crossed the border without authorization as subject to criminal prosecution, even if they tell the officer apprehending them that they are seeking asylum based on fear of returning to their home country, and whether or not they have their children in tow.
Technically, there is no Trump administration policy stating that illegal border crossers must be separated from their children. But the “zero tolerance policy” results in unlawful immigrants being taken into federal criminal custody, at which point their children are considered unaccompanied alien minors and taken away.
__
Under a 1997 consent decree known as the Flores settlement, unaccompanied children could be held in immigration detention for only a short period of time; in 2016, a federal judge ruled that the settlement applied to families as well, effectively requiring that they be released within 20 days. Many were released — some with GPS ankle bracelets to track their movements — and asked to return for a court date sometime in the future.
It was Mr. Bush, who had firsthand experience with the border as governor of Texas and ran for president as a “compassionate conservative,” who initiated the “zero tolerance” approach for illegal immigration on which Mr. Trump’s policy is modeled.
In 2005, he launched Operation Streamline, a program along a stretch of the border in Texas that referred all unlawful entrants for criminal prosecution, imprisoning them and expediting assembly-line-style trials geared toward quickly deporting them. The initiative yielded results and was soon expanded to more border sectors. Back then, however, exceptions were generally made for adults who were traveling with minor children, as well as juveniles and people who were ill.
Mr. Obama’s administration employed the program at the height of the migration crisis as well, although it generally did not treat first-time border crossers as priorities for prosecution, and it detained families together in Immigration and Customs Enforcement custody — administrative, rather than criminal, detention.
Discussions began almost immediately after Mr. Trump took office about vastly expanding Operation Streamline, with almost none of those limitations. Even after Mr. Kelly stopped talking publicly about family separation, the Department of Homeland Security quietly tested the approach last summer in certain areas in Texas.
Privately, Mr. Miller argued that bringing back “zero tolerance” would be a potent tool in a severely limited arsenal of strategies for stopping migrants from flooding across the border.