Public opinion polling influences political campaigns by providing candidates with insights into the preferences and priorities of the electorate. Campaigns use this data to tailor their messages and strategies, improving their chances of winning votes. Accurate polling can identify key demographic shifts and issues, guiding where candidates should focus their resources. The results can also impact policy positions, as candidates may adjust their platforms to align with public sentiment. Ultimately, polling serves as a barometer for political viability, allowing campaigns to adapt dynamically to changing voter attitudes.