It's because the president is actually elected by what's called the electoral college. In each state each political party selects "electors", people that will become members of the electoral college. The electors are proportioned to the states based on the number of senators and representatives each state has. Then in the general election, what took place on Nov 8, the vote determined in the winner-take-all states, which group of electors would become part of the electoral college, generally Republican or Demonrat but also possible for Socialist, Independent, Green or whatever. Some states break it down to districts so a state could have a split vote. Due to past problems of electors being selected to represent one party, then going to the college (they don't actually go anywhere- they stay in their state and transmit their vote) and casting their vote for someone else, some states, last I checked, 29 enacted laws requiring an elector to vote as per the intention of the voters. So what's happening now is some diehard Demonrats are intent on subverting the electoral system by getting some of the electors from the 21 states where they are not required by law to vote as directed. I don't know how many of the 21 states have electors designated to vote for the Republican candidate. But the president isn't officially elected until 270 electoral votes are cast on Dec 19. The Republicans have been amused by all of the contortions exhibited by the Demonrats, but one thing is certain, if a sufficient number of electors jumped ship and caused the result to be either Hitlary getting 270 or more likely, no one getting 270 & the election going to the House of Representatives for an election of president, those electors that subverted the election process would have Hell to pay. Their names, addresses and other information is publicly available and they will be the focus point of division as never seen in America since 1861.