I think most people know she's a shameless liar anyway, and this only reinforces that belief. She may have a couple even bigger problems. One is her age and health. The other is that a lot of married women, in particular, don't like her. The idea of adulterous husbands tends to be very upsetting to them, and many of them just don't trust a wife who would put up with it year after year, woman after woman. I suspect that to many married women, tolerating that much infidelity that blandly seems so unnatural that it makes it hard for them to feel any sympathy with Mrs. Clinton.