Constitutionality. Immigration experts looking at Trump’s plan point out that the real estate mogul’s proposal to force more than 12 million people across the U.S. border faces massive legal hurdles. One of highest is that many of the deportees – U.S.-born children of undocumented immigrants -- are actually U.S. citizens.
“He’s incoherent and probably doesn’t know what he’s saying,” said attorney Cesar Vargas, co-director of the Dream Action Coalition, which advocates for illegal immigrants. “You can’t deport a citizen…. What he’s suggesting is the kind of ‘self-deportation’ that Mitt Romney advocated for. You’re indirectly deporting the U.S. citizen as well because they have to follow their parents.”
I guess Trump could get SCOTUS to re-write the Constitution.

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