Was the united states essentially acting as a white western imperialist power or did american democratic ideals?

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This question belongs to the subject "How the US became a World Power", and the correct formulation of the question is "...or did American democratic ideals substantially restrain the imperialist impulse?"

regarding the US approach in Latin America and East Asia throughout the Spanish-American War.

And the answer is yes, US was consolidating its world power ever since, acting as the world's police and as a white western imperialist power, imposing democratic ideals but not always improving the socio-economic conditions of the newly acquired territories such as Guam, Philipines and Puerto Rico, following the idea of the "Manifest Destiny", a white supremacy movement with the idea of removing native populations by White European-American colonists allegedly divinely entitled to expand worldwide.

d) he bring down boss tweed and tammany hall.