For what it's worth, changing the voting system to, e.g. ranked choice or theoretically superior variants would automatically open up the viability of third (an

For what it's worth, changing the voting system to, e.g. ranked choice or theoretically superior variants would automatically open up the viability of third (and fourth) parties. Right now, if a popular movement becomes so excited that they put forth multiple candidates, it divides the vote and they lose.