[alistairSH]

Become member of both parties, and vote for presidential candidates at both sides.

This usually isn’t allowed. At least in my precinct (in an open primary state), both primaries are on the same day, in the same location, and you select which party’s ballot you want when you arrive. Anybody can vote, you don’t have to be a party member.

Some states have closed primaries, where only party members can vote. Usually you declare party membership in advance. Not sure how these states prevent people from joining both - I suspect there is a state register of party affiliation.

As the parent post alluded to, the US is at a bit of a crossroads. The protections built into the political system that were added to protect minority political groups from the tyranny of the majority has been turned on it’s ear over the last several decades and we’re now stuck with an ever-decreasing population of angry christo-fascists making decisions against the will of the vast majority of the nation.