While I’m not in favor of birthright citizenship, it appears to me that the Supreme Court has interpreted the jurisdictional issue to exclude only ambassadors or others directly assigned to be in the U.S. by a foreign government, and that all others born here are automatically granted U.S. citizenship.
Since the Court decides what the current Constitution says, it would seem to me that it would require a Constitutional Amendment to change the current situation.
As for Trump, he wouldn’t know the Constitution if it bit him in the butt. Remember, he’s held more Dem policy positions than GOP positions in the past. To claim that he’s got a good read on the Constitution on this issue is ridiculous, especially since the Supreme Court has already ruled opposite to his view. Not only does he say what people want to hear, but it’s even worse. People are now hearing what they want to hear even if Trump hasn’t actually said it. He’s espoused several different positions on PP in the last two weeks and his supporters just pick the one they like. Makes being a politician easy.
Listen to the show and the case Levin is making about article 1, section 8 and tee authority of congress. You might learn something.