We already have some reasonable tests you can apply now, like how many lies do they tell each day (I’d like to use a longer time unit, but well, the bar has moved). Or how do they stand with decent human values or policy positions. People don’t seem too good at applying those tests, I’m not sure how some other tests would help matters.

Maybe if candidates magically turned some bright color to show how much a peice of shit they were, people could learn to use that, that seems simple enough for even the really dim, but I expect they’d fail to use that too.