Libertarians are at least closer to us than the other parties. I was raised by a conspiracy libertarian, and while I don't even talk to my Dad anymore, I can firmly say that the values he distilled in me as a child are what made me a communist. He was more critical over American intervention than anybody else I've ever met, he was the first person I saw critically support the national self determination of the Taliban. He was even better on China than most people in the States, constantly asking if I actually believed the bullshit on the TV. He was overall anti-China, but knew way more about the nation than I've heard from any other westerner, including calling the Black Book bullshit while criticizing China. If I talked him into it, he'd even be able to admit that Mao was a net good for China as a nation.

I'm probably wrong large scale, but I feel like I've seen a certain earnest conviction amongst American libertarians. As if they have decent values at heart, but have given into capitalist brainworms. I've shown many libertarians Marx, because Marx is just spitting straight facts in the first two volumes of Kapital, there's barely even an emotional argument there it's just pure facts. Usually have to synthesize what he's saying, but they usually agree with Marx's criticisms after having it translated.

In America, Libertarians are the most valuable people to convert. They're already leaving America's party system, and consider both parties to be controlled opposition. All you have to do is shift their window with Marx (or Lenin, depends on the person) and they will shift.

John Quincy Adams won that election, despite Jackson getting more EC votes and a higher popular vote. Jackson then won the next election normally.

But that election didn’t even have a second party candidate. All four candidates were from the same party. So a third party candidate causing a contingent election would still be a big deal. And it would just be funny.

I also imagine a possible scenario where the third party candidate tells their EC voters to vote for Biden or Trump as faithless electors, with some sort of concessions, potentially even the Vice Presidency.