Why did theodore roosevelt have idealogy problems with president mckinley?

Theodore Roosevelt had ideological issues with President William McKinley primarily due to their differing views on progressive reforms and the role of government. Roosevelt, a staunch progressive, believed in a more active government role in regulating industry and addressing social issues, while McKinley was more conservative and favored a laissez-faire approach to the economy. This divergence became particularly evident during the Spanish-American War, where Roosevelt's aggressive foreign policy contrasted with McKinley's more cautious stance. Their conflicting perspectives highlighted the broader tensions within the Republican Party at the time.