Delivers a timely, in-depth exploration of how artificial intelligence is disrupting the foundational processes of electoral democracy. As AI technologies increasingly shape political communication, this much-needed book equips readers to identify and critically assess the emerging threats to transparency, fairness, and legitimacy in democratic elections. Drawing on real-world cases from across the globe-- including Argentina, India, the U.S., and Slovakia-- the authors present an empirically grounded taxonomy of AI-related threats, including deepfakes, firehosing, cognitive hacking, astroturfing, and psychographic microtargeting. This book fills a critical gap in the literature by addressing not only the political and communicative dimensions of AI's role in elections, but also its legal and ethical implications. The authors propose a clear framework to evaluate the impact of AI through principles-based analysis and present comparative insights into the regulatory responses emerging in diverse jurisdictions. With a structured approach that spans historical context, threat classification, ethical considerations, and legal strategies, the book focuses on the systemic challenges AI poses to electoral integrity.