There are 538 total electors in the electoral college. A candidate needs 270 to win the presidency. The electoral College consists on the meeting of the electors that vote for President and Vice President and the counting of the electoral votes. The electoral college system was established by the founding fathers.
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For Anna the opportunity cost of going to her good friend's birthday is two or three hours of sleep
The purpose of the League of Nations was to prevent through collective security and disarmament and settling international disputes through negotiation and arbitration. The League of Nations also wanted to take care of labor conditions, just treatment of native inhabitants, human and drug trafficking, arms trade, global health, prisoners of war and protection of minorities in Europe.