U.S. ConstitutionArticle II — The Executive BranchSubarticle 1Section 2
Each State shall appoint, in such Manner as the Legislature thereof may direct, a Number of Electors, equal to the whole Number of Senators and Representatives to which the State may be entitled in the Congress: but no Senator or Representative, or Person holding an Office of Trust or Profit under the United States, shall be appointed an Elector.
Use as reference
Lexinter.net | U.S. Const. art. II, § 1, cl. 2 | https://laws.lexinter.net/constitution/us/article-2/section-1/clause-2