Fourteenth Amendment, 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.
The right to remove disabilities imposed by this section was exercised by Congress at different times on behalf of enumerated individuals.1 In 1872, the disabilities were removed, by a blanket act, from all persons
except Senators and Representatives of the Thirty-sixth and Thirty-seventh Congresses, officers in the judicial, military and naval service of the United States, heads of departments, and foreign ministers of the United States.2 Twenty-six years later, Congress enacted that
the disability imposed by section 3 . . . incurred heretofore, is hereby removed.3