Answer:
Some Americans, with President McKinley supported the U.S. annexation of the Philippines. Why, because of economic/commercial gain, erroneous belief that the Filipinos were uncivilized and needed someone to rule over them (this was called benevolent assimilation), afraid another country might take over.
The Anti-imperialist league was against the U.S. annexation of the Philippines. Why, because they viewed this action as unconstitutional, before American Revvolution we had been colonized and we didn't like so why are going to do it to other people, we should be solving problems at home not overseas, this contradicted the ideals America had been founded on like the Declaration of Independence.
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Step-by-step explanation: