Here's an interesting factoid. The Electoral College is supposed to be bound to vote the way their states voted. However, they are not totally obligated to do so. In other words, even though the state vote went for Trump, the
electors for that state could still place their vote for Hillary and that would be perfectly legal. The founding fathers placed this check and balance into the system just in case the population voted for someone totally unfit to be president. Whether they ever choose their option to do this to influence an election remains to be tested.
Can the Electoral College be eliminated? Of course, by an amendment to the Constitution. This is a difficult process requiring a two-thirds majority in both the House and Senate to propose the amendment, then at least three-fourths of the states must ratify the amendment. This, of course, is designed to make doubly sure that the amendment has the broad support of the people. The cumbersome process is also the reason the Constitution has only been amended 27 times. However, recent events have seen the political class circumvent the process by legislating through the judicial system and unlawfully attempting to thumb the proverbial nose at the Constitution via executive order.