What influenced President William McKinley to consider war against Spain in 1898?

President William McKinley’s consideration of war against Spain in 1898 was significantly influenced by jingoism within the Republican Party. Jingoism is characterized by extreme patriotism, often favoring aggressive foreign policy. In the context of McKinley's presidency, this sentiment was fueled by a combination of factors, including sensationalist journalism, known as "yellow journalism," which stirred public outrage over Spain's treatment of Cuban rebels. The Republican Party was energized by nationalistic fervor, creating pressure on McKinley to take decisive action in favor of intervention.

This environment of jingoism not only heightened public sentiment against Spain but also positioned McKinley’s administration to respond to growing calls for action, culminating in the decision for war. The intense pressure from party leaders and a growing segment of the American populace eager for military engagement played a critical role in shaping U.S. foreign policy during this period.

While other factors existed—such as humanitarian concerns over Cuba's plight and economic interests in the Caribbean—jingoism distinctly encapsulated the political climate that propelled McKinley towards the decision for war, demonstrating how domestic pressures can influence foreign policy decisions.