Some falsely claim Obama also practiced family separation at the border, which is false. With Obama, unaccompanied minors arrived at the border & he placed them with other children. But, Obama did not separate families who came to the southern border.
The Trump administration, as a deterrent, separated families, which led to mass confusion and poor documentation led to parents not knowing the whereabouts of their children. Even today parent-child relocation is a nightmare.
Apparently, the administration separated more children than previously known. Poor record keeping made clear that additional children were taken from their parents.