Salespeople, scammers, and politicians (who tend to be a little of both) constantly use logical fallacies.

Politicians in particular use them in their speeches, interviews, rallies etc.

And in most cases, they seem to get away with it.

But I think if people understood just the basics of the method of logic, and in particular the ten or so logical fallacies that are used constantly these days, it might go a long way toward weeding out some of the truly horrible politicians, and leave behind more of them that were only slightly foolish.

If nothing else, it would give people a defense against aggressive salespeople and scammers.