The Supreme Court’s Tuesday decision on birthright citizenship comes as Americans are split on the question of whether being born in the U.S. is central to American identity, with stark partisan divides on the issue, according to the recent NBC News poll . New data from the survey poll finds a slim majority — 54% — say being born in the U.S. is important to being “truly American,” while 45% say it is not important. Overall, Americans rank several other traits as far more important to American