When Alexander Hamilton sketched his design of the Electoral College, he envisioned a free-flowing debate in which electors followed the dictates of their own conscience, rather than the will of the voters who chose them. Rogue electors aren’t likely to succeed in preventing Trump’s election, but they could succeed at something even more significant: sowing enough distrust of the Electoral College to set in motion a movement to do away with it, to be replaced by popular election of the president.
http://www.politico.com/story/2016/12/electoral-college-rogue-electors-hamilton-232802