A. The number of senators and representatives the state has in Congress.
The number of electors assigned to each state is equal to the number of senators and representatives that state has in Congress. Each state has two senators, and the number of representatives is based on the state's population, as determined by the decennial census. This means that states with larger populations have more representatives in the House of Representatives and, therefore, more electors. The total number of electors is 538, which is equal to the sum of the 435 representatives, 100 senators, and 3 electors assigned to the District of Columbia.