MEXICO CITY (AP) — In a U.S. electoral campaign punctuated by jibes about “childless cat ladies,†some might wish there were rules against mocking candidates based on their gender. Mexico — which just elected its first female president — has such a law but, surprise, it's not that easy.

The debate centers around a hard-fought race between two female candidates for a Mexico City borough presidency. An electoral court overturned an opposition candidate's victory, ruling that she had committed “gender-based political violence†against the losing, ruling-party candidate.

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