Trump said he would revoke birthright citizenship. It hasn’t worked in the past

President-elect Donald Trump has promised to end the right to citizenship for babies born in the U.S. to parents who are undocumented. During the NBC interview, Trump erroneously said the U.S. is “the only country that has it.” In fact, more than 30 countries recognize birthright citizenship, most of them in the Western Hemisphere. In a post last year on his campaign website, Trump wrote that he would issue an executive order his first day as president, directing federal agencies to “require that at least one parent be a U.S. citizen or lawful permanent resident for their future children to become automatic U.S. citizens.” He said the order would clarify that children of undocumented immigrants “should not be issued passports, Social Security numbers, or be eligible for certain taxpayer funded welfare benefits.” On NBC, Trump said he would end birthright citizenship “if we can” through executive action. Targeting “anchor babies” and “birth tourism,” Trump planned to sign an executive order that would end birthright citizenship for the children of immigrants during his first term. But Erman, the Michigan law professor, said it’s unlikely that even the conservative-leaning court would move to end birthright citizenship.