'No way he can do that': Legal expert blows up major Trump campaign promise

Donald Trump made a major promise on the campaign trail, but, legally, it will be all but impossible, a legal expert said.

Neal Katyal, the former acting solicitor general, appeared on MSNBC on Sunday to discuss Trump's plans as the former president and president-elect heads back to the White House.

Asked about Trump's claim to be able to end birthright citizenship via executive order, Katyal said, "No, last I checked the President can't override the Constitution."

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“The 14th Amendment is as clear as day that there is no way he can do that," the attorney added. "If he tries that, he will lose in court every day of the week.”

Legal analyst Allison Gill, better known as Mueller, She Wrote, said, "