The statement 'he initially hesitated to enter into war with Spain' best identifies President McKinley as an expansionist.
A. He initially hesitated to enter into war with Spain.
Explanation:
Right from the beginning of his election campaigns, President McKinley had given an impression about how he would help the economy of the nation to prosper. He chose to keep the gold standard functional even when there was a popular demand for free silver system.
He also imposed numerous protective taxes on foreign goods in order to enable the domestic businesses within the United States to prosper.
Just to avoid the possible losses in the war and to save the country from the economic recession that may possibly occur after the war, he initially took the stand of not entering into a war with Spain.