Big data influences political campaigns by enabling tailored messaging and targeted outreach strategies. Campaigns leverage data analytics to understand voter preferences, behaviors, and demographics, allowing them to craft persuasive narratives. This data-driven approach enhances engagement and mobilizes supporters more efficiently. Additionally, big data tools can identify issues of concern for different voter segments, helping campaigns to adjust their platforms accordingly. However, this raises ethical concerns regarding voter privacy and manipulation, highlighting the need for balancing data utilization with responsible practices.