The Electoral College is an institution that officially elects the President and Vice President of the United States. Each state has a certain number of electors, which is equal to the number of members of Congress each state has. For example, California has 55, because the state has 2 Senators and 53 Representatives. There are a total of 538 electors, because 435 Representatives, 100 Senators and 3 additional electors for the District of Columbia.
The candidate who wins the majority of the votes in a state wins that state’s electoral votes. Nebraska and Maine are the only two states who assign the electoral votes by proportional representation.
Electors are selected different from state to state, but typically a political party nominates their electors at the state conventions.
Like we saw in 2000 during Gore v. Bush, a presidential candidate can lose the popular vote and win the Electoral College vote.
Take a look at the map below to see how many electors each state has: