Progressive Politics

I heard about this in the UK elections recently, and someone recommended it to me recently for the US elections, because I said I empathize with the people who are voting against Kamala because of the genocide, despite being a Kamala supporter myself (you've probably seen me around arguing as such lol).

Basically, it's a system where people in safe states, like me, agree to trade votes with someone in a swing state. So the safe state person would vote with the heart of the person in the swing state, so they can kind of vote their heart and mind at the same time.

Is this a thing we could set up? Would it be legal to make a community for that, or would it rub against laws about affecting votes or something? There was even a whole site for the UK, but not sure if it would work in the US.