The only part of Ike’s process mentioned by Trump was shipping back 1.5m. He did NOT mention that the rest self deported. Further, Trump did not mention ion E-verify. Trump needs to dig deeper on this topic.
Trump brought Ike up in response to PITA Kasich saying you can't deport blah blah. Point being you can, and it has been done. No need to further go into the weeds on specifics.