> nor can you trust them to be honest

We trust juries with locking people up for life if necessary and settling billion-dollar lawsuits. That’s the beauty of sortition. Most randomly selected people are honest instead of biased party functionaries.

Even if you got 3/4 registered Republicans at one polling location via sortition, the chances of those being people willing to cheat the election is very small as they are random citizens.

Similar to jury selection you would probably keep identity and assigned location secret by law until Election Day to prevent tampering.