"Do Trump’s alleged affairs even matter?" by Callum Borchers (at WaPo).

I did take a look at the top-rated comment: "If President Obama had had an affair, it would have mattered a lot to these same people. Hypocrites without honor, all of them."

If President Obama had an affair, it would matter because we have an opinion of him as a man who has been an excellent husband. It would have mattered to people who love him more than those who hate him.

Trump's affairs don't conflict with much of anything anybody thinks of him. You can't use them because those who want to use them are not those who are genuinely upset about the affairs but people who are looking for ways to attack the man they already hate. And anyone who likes Trump can easily see that about them and moves on. That's not hypocrisy, that's competence — resistance to trolling.