There are 538 members of the Electoral College. How could that number change without amending the Constitution?
The number of electoral votes is set at 538, based on 435 members of the House of Representatives and 100 members of the Senate, plus 3 electoral votes for the District of Columbia under the 23rd Amendment. The Electoral College could become larger if a new State were admitted into the union (adding two new Senators and one or more Representatives until the next redistricting), or if the House of Representatives expanded. The size of the House is set by law, not by the Constitution (2 U.S.C. 2).
