I'd like to see a lot more bumper stickers like that. Don't vote for Hillary because her husband has been guilty of marital infidelity.
You'll get plenty of mileage out of that.
I believe it's a clumsy attempt at a subtle reference to the fact that Hillary is nothing more than an ex-President's wife. A wife who stayed with her womanizing husband in a cold marriage of political convenience. That marriage launched her into her Senate seat, bought and paid for, and started the whole mess.
The short record she has is unremarkable (abysmal when it comes to Secretary of State), yet millions of lemming women will vote for her because they have the same body parts and somehow see her as an "accomplished" woman...mistaking politically attained position and ineffectiveness as accomplishment.