I haven't heard any serious plan from anyone, including Trump, about identifying the illegals here and deporting them. This talk about ending sanctuary cities and building a wall is fine but does nothing about the 20 million already here.
I've asked myself, if we had a government serious about removing illegals, precisely how would they go about finding/identifying them?
Have you listened to his last two speeches? That is where he described in detail his plans.
This is the speech I listened to: President Trump Delivers Keynote Address at Faith and Freedom Coalition – 7:00pm Livestream. Skipping ahead to ~1h 4min accesses the beginning of his border and deportation segment.