In California — and other states like Texas and New York — you’re not allowed to visibly promote a political candidate within 100 feet of a polling place on an election day. It violates the state’s law against electioneering. That means, this morning I couldn’t stand outside my local polling place and hold a sign advocating for Hillary Clinton or Donald Trump. But I could buy ads in social apps like Facebook, Instagram, Snapchat and Twitter aimed at people in the area.
Facebook, Instagram, Twitter and especially Snapchat offer location-based ad targeting options that can be used to pinpoint people within varying proximities of a polling place.
