How are electors in each state assigned to a presidential candidate?

Each state has

electoral votes equal to the total of the 2 representative the

state has in the U.S. Senate plus the number of representative the

state has in the House of Representatives. Since every state has

two senators and at least one representative to the House, every

state has at least 3 electoral votes. The District of Columbia gets

3 electoral votes. Therefore, the total number of electoral votes

is 538 - 100 (senators) + 435 (representatives) +3 (for DC). A

majority is 270 - one more than half of the total number 0f

538.