^ well, i dont have any data for it, but i think voters are well aware of the electoral college, and if they are not, it will be virgin and fertile ground that trump can use to his advantage by informing them of the consequences of abolishing the ec.
Dont care? The whole point of pandering for this significant change is that democrats do, or started the day after a certain orange man won the 2016 election. If they dont care either then warren is a bigger idiot than i thought, and i think she is a big idiot. <45>
As a side note no-one won the popular vote in 2016, its not the winning metric. If it was then the voting patterns, and tactics and strategies used get or suppress them would have be entirely different. As an analogy, no american football team can claim to win the most yards rushed in a game. TDs are the winning metric. If yards rushed determined the winner, the game would be played entirely differently.
Don't wanna get too off topic, but I think convincing people to abolish the EC is a very easy position if we have a national conversation about it. Auto-blue California has more rural farmers than most red states. They feel disenfranchised in national elections, and their vote should count. Red states have the same thing with their more left-wing urban centers. The tactical change this creates in elections is something that probably should happen, as most of America seems to get completely ignored by candidates on both sides. You can say that a presidential race isn't the right time to bring the issue up, since swing-state voters feel the most empowered by the EC, but it's a principled position that most Americans could probably get behind.