Section 1 of the 14th Amendment reads:
“all persons born or naturalized in the United States, and subject to the jurisdiction thereof, are citizens of the United States and of the State wherein they reside”
Judge Richard Posner beileves that this does not require granting birthright citizenship to the children of any illegal immigrants, tourists, or other foreigners who happen to be in the U.S. while giving birth, noting that the original intent was to ensure citizenship for freed slaves.
In his 2003 opinion on Oforji v. Ashcroft her wrote:
Some more analysis from a recent Breitbart piece on the feasibility of this:
"If a constitutional conservative Republican wins the White House, and Republicans control both the House and Senate, then as part of finally dealing with immigration Congress could enact this change.
First must be a statute that effectively secures the border. A second statute should address citizenship. Then a third could be a statute creating a broad and generous guest-worker program.
Each bill would save the United States billions of dollars per year. Consequently,
each could be passed in the Senate through what is called “reconciliation,” and therefore could not be filibustered and instead passed with 51 votes. With 218 House members, 50 senators (plus the vice president), and a willing president, all this could become law in 2017."