3 U.S.C. § 3 : US Code - Section 3: Number of electors

Search 3 U.S.C. § 3 : US Code - Section 3: Number of electors

The number of electors shall be equal to the number of Senators
and Representatives to which the several States are by law entitled
at the time when the President and Vice President to be chosen come
into office; except, that where no apportionment of Representatives
has been made after any enumeration, at the time of choosing
electors, the number of electors shall be according to the then
existing apportionment of Senators and Representatives.