I have to apologize here; it seems I jumped the gun in saying that we'd remove it. As it turns out, there is nothing "wrong" with the ad, in technical terms. While some may find it distasteful and irrelevant, political ads are a form of political speech, which falls under free speech, and are allowed under standard ad policies.
Both sides are represented in the ads but, most likely as a result of ad targeting, most of you are being served ads that take shots at Hillary. I'd wager that those of you seeing them probably lean towards the left, while the right-leaning members are seeing ads against Trump.