Even without border wall, if all those measures are implemented immigrating illegally to US will make less economic sense. Also a lot of immigrants will self-deport after they fail to get any job due to e-verify enforcement.

* Triple the number of ICE officers.

* Enhanced penalties for overstaying a visa.

* Detention—not catch-and-release.

* Defund sanctuary cities. Cut-off federal grants to any city which refuses to cooperate with federal law enforcement.

* Nationwide e-verify. This simple measure will protect jobs for unemployed Americans.

* End birthright citizenship.

https://www.donaldjtrump.com/positions/immigration-reform