A lot of what needs to be done is making sure that the Harris win is large enough that you can’t easily claim that a handful of ballots should be tossed and change the outcome. That means:
- Check your voter registration — part of the Republican strategy has long been invalidating registrations so people can’t vote
- Volunteer — nothing in the world quite like talking to people.
- Donate — money is used for everything from ads to voter turnout operations
- Organize; be prepared to turn out with others in your community to actively object to any effort to ignore your votes
It is the case that electors are required to vote for the nominee that they pledged to vote for. If you pledged to vote A as an elector you are obligated to vote A. However, as I understand from skimming CHIAFALO ET AL. v. WASHINGTON (2019), it is on pain of penalty…
There might be more to it but I don’t have time to read it all.
Also, it doesn’t really matter what the rules say. The current right wing majority of the SCOTUS doesn’t give a flying fuck about laws, rules, or precedents if they don’t support their views so who the fuck knows.