Well, we already have that to some extent. It's an interesting idea, but it may drive things even more to the most bland candidate. It's a thin line. We want a candidate who represents the people, but if you try to be all things to all people you do nothing. So we also want a candidate who leads, and explicitly doesn't represent some of the people. Their job is to counterbalance the various wishes and needs of the people and find the right course, not just to do what 51% of them want. And even at times to not do what almost all of them want if it violates the constitution, for example.

As noted, there are two purposes for secret ballot, and we've given up one of them today by allowing arbitrary mail-in (or 100% mail in) in most places. The missing goal is to prohibit ballot buying, selling and coercion. With public ballots, not only can you buy and sell but you may face social pressure in your peer group to check out your ballot and to make sure it's "right."