In the 68th Federalist Paper, Alexander Hamilton described the mission of the electoral college to prevents those with, "Talents for low intrigue, and the little arts of popularity" from becoming President. The electoral college has become a rubber stamp not a serious body to consider the Founder's concept of it.
In 2016, Hillary Clinton won the popular vote defeating Donald Trump by 2.86 million votes, despite a race with both national Libertarian and Green Party candidates. The electors ignored the last minute actions by FBI Director James Comey to fool voters. It ignored documentation from intelligence agencies that Vladimir Putin and Russia had used illegal tactics to interfere with the race. And, of course, it ignored Donald Trump's daily lies, his failure to release his tax returns, his encouragement of Putin and Russia to hack the election, twenty allegations by women against him of sexual assault and his racism, xenophobism and violent rhetoric. The electoral college failed as completely as one can image.
In 2000, Al Gore won the popular vote but lost in the electoral college (possibly because the Florida vote count was blocked by the Supreme Court). Soon we found ourselves in a never ending war on terror. We wasted a trillion dollars in Iraq destabilizing the middle east and leaving our infrastructure at home to waste.
Unite for America issued a call to electors not to cast their vote for Trump and all reasoned, thoughtful appeals were ignored:
Here's more on the problems with the Electoral College: