Historians assess political elections by analyzing a variety of factors, including campaign strategies, voter turnout, and the social and economic context of the time. They delve into primary documents, such as ballots, campaign literature, and newspaper articles, to understand public opinion and political discourse. Additionally, historians consider demographics, exploring how different groups voted and the implications for political movements. Voter behavior trends and the influence of media are also critical components in evaluating the significance of particular elections, offering insights into political changes over time and their lasting impact on society.