according the fourteenth amendment to the constitution citizens of the united states are both
The 14th Amendment to the U.S. Constitution reads in part: All persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and the State wherein they reside..o qualify children for birthright citizenship, based on the 14th Amendment, parents must owe direct and immediate allegiance to the U.S. and be completely subject to its jurisdiction. In other words, they must be United States citizens.