For those of us who want to read the relevant portions of the 14th Amendment:
Amendment 14, Section 3: Disqualification from Holding Office
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.
Amendment 14, Section 5: Enforcement
The Congress shall have power to enforce, by appropriate legislation, the provisions of this article.
Right, and per the opinion, Amendment 14 sections 3 and 5 specifically take rights away from the States to delegate for the federal government.
For those of us who want to read the relevant portions of the 14th Amendment:
Amendment 14, Section 3: Disqualification from Holding Office
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.
Amendment 14, Section 5: Enforcement
The Congress shall have power to enforce, by appropriate legislation, the provisions of this article.
From https://constitution.congress.gov/browse/amendment-14/#14_S3
EDITED for formatting