It was an H-1B amendment and TPA Teddy wrote it as a sop to his fat cat Wall Street donors. He only withdrew his position when Trump made it an issue.
What’s funny is you are so deep into Cruz you seem to think the GOP can unring the bell on these anti-Trump & Trump voter insults in November. The GOP is cracking up thanks to Romney, Cruz and their cheering sycophants. Good riddance.
This bill amends the Immigration and Nationality Act to include among the grounds for loss of U.S. nationality by a native-born or naturalized citizen: ...
The text of the legislation does not use the term "native-born." It includes ...
"(a) In general.--A person who is a national of the United States whether by birth or naturalization, shall lose his or her nationality by voluntarily performing any of the following acts with the intention of relinquishing United States nationality ...
The reasonably well known connection between "native-born" and "by birth", as distinguished from "naturalized" comes from the 14th amendment, which offers only two categories of citizen. Born in the US (which is synonymous with "native-born") and subject to the jurisdiction being one, and naturalized being the other.
At any rate, this bill was offered for consideration by foreign-born Ted Cruz, who persistently asserts that he is not a naturalized citizen.
Separately, S.247 reads like a sop to me, on account of including the "intention of relinquishing United States nationality" language, which is tightly enforced by the courts - giving up US citizenship requires deliberate action and strict adherence to form, otherwise the courts will not find intention to relinquish. Assuming the bill passed, it would not increase anybody's risk of loss of nationality.