Trump has railed against birthright citizenship, which is protected by the 14th Amendment, for years and suggested he’d use executive action to ban it. Trump allies argue that the 14th Amendment has been misinterpreted and doesn’t apply to children born in the United States to undocumented parents. They know they’re going to the Supreme Court with it, and they’ll methodically make their case,” said another source familiar. The strategizing by the Trump team to try to end birthright citizenship has been matched by the preparations made by those who would challenge the move in court. Longstanding Supreme Court precedents are also a major hurdle for the incoming Trump administration.

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Persons: Donald Trump’s, Trump, We’re, ” Trump, NBC’s Kristen Welker, he’s, Welker, shouldn’t, they’ll, ”, Steve Vladeck, Cody Wofsy, ” Wofsy, Matthew Platkin, Rob Bonta, there’s, Hiroshi Motomura, Roe, Wade, “, ” Motomura Organizations: Washington CNN —, State Department, Trump, CNN, Pew Research Center, Georgetown University Law Center, ACLU Immigrants ’, ”, New, University of California, Los Angeles School of Law Locations: United States, Canada, Mexico, New Jersey, Philadelphia . California