You should probably not phrase it this way, given that the 14th Amendment specifically forbade anchor babies and was then re-interpreted by activist courts. Such a Constitutional limitation is not subject to change by the Congress either because the Supreme Law of the Land holds that children of foreign subjects are not citizens.
There's nothing in the 14th amendment forbidding anchor babies.
Section 1. 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. No State shall make or enforce any law which shall abridge the privileges or immunities of citizens of the United States; nor shall any State deprive any person of life, liberty, or property, without due process of law; nor deny to any person within its jurisdiction the equal protection of the laws.
On the other hand, Section 3 implies that John Kerry is holding office illegally. The Carter era amnesty by pardon, should not have applied to Kerry, as he had taken an oath as an officer of the US. Congressional legislation requiring 2/3rds approval level for officers of the United States, is required by this amendment section.
Section 3. No person shall be a Senator or Representative in Congress, or elector of President and Vice President, or hold any office, civil or military, under the United States, or under any State, who, having previously taken an oath, as a member of Congress, or as an officer of the United States, or as a member of any State legislature, or as an executive or judicial officer of any State, to support the Constitution of the United States, shall have engaged in insurrection or rebellion against the same, or given aid or comfort to the enemies thereof. But Congress may by a vote of two-thirds of each House, remove such disability.