Despite older, no longer relevant definitions (such as the one that includes foreign born individuals that were here prior to the existence of the USA) the test for a NATURALIZED citizen includes not being a citizen prior to taking classes, passing a test and being sworn in. The ONLY other definition is an NBC, in which one is a citizen at birth due to the U.S. citizenship of at least one parent (no longer parent”S”). There is a mechanism in place to settle this issue from state to state where the Party (in this case the Republican Party) of the state CERTIFIES the candidates as qualified to appear on the ballot. For instance, on December 15, 2015 the Republican Party of Virginia CERTIFIED that Ted Cruz (as well as 12 others) were QUALIFIED to appear on the 2016 Republican Presidential Primary ballot. The Party, as well as the State, has an obligation to certify that the person running is eligible to do so.
So, if you have a beef with me, Rush and Levin on this issue please know you also have a beef with 50 states, the Republican Party state organizations for 50 states and the National Republican Party. Of all of those the 101 last mentioned are the most important and have the most legal responsibility to certify eligibility.
4.4 Current Federal Statutes: Current Federal law, specifically Title 8 Section 1401, lists those who are U.S. citizens at birth (persons who acquire U.S. citizenship at the time of their birth), but does not specify persons who are U.S. citizens by birth [45].
The term natural born citizen is not found in any existing Federal statute. Although the U.S.-born child of a foreign-citizen parent is a U.S. citizen by modern-day policy, no existing Federal statute declares such a child to be a natural born citizen