Obama’s deportation numbers were juiced compared to post-2015 numbers because there was a change in the definition of that term.

Obama’s deportations were mostly border patrol apprehending and pushing people back across the border, not ICE being super efficient at rounding up people in the interior of the country.

A good primer on immigration enforcement before and during the Obama admin:

https://www.migrationpolicy.org/article/obama-record-deporta...