In september 1901 what event changed american policy?

Question

thariff law passed, or cuba became free, or panama created, or mckinley assassinated

Answer 1

William McKinley´s second term, which had begun auspiciously, came to a tragic end in September 1901. He was standing in a receiving line at the Buffalo Pan-American Exposition when a deranged anarchist shot him twice. He died eight days later and was succeeded by Theodore Rooselvelt.

Theodore Roosevelt became president in September 1901, his enthusiasm for overseas expansion noticeably waned. Urged to take over the Dominican Republic, he quipped, "As for annexing the island, I have about the same desire to annex it as a gorged boa constrictor might have to swallow a porcupine wrong-end-to." Under Roosevelt, America's colonial holdings actually shrunk. And after the Russo-Japanese War in 1904, Roosevelt changed America's diplomatic posture from competitor with the other imperialist powers in dominating the world to mediator in their growing conflicts.

Answer 2

McKinley assassinated

Answer 3

http://www.schillerinstitute.org/educ/hist/mckinley0901jba.html