What was america's foreign policy when the japanese became aggressive?

Japan’s aggressive policies in China resulted in tense relations with the U.S. Japan had territorial ambitions and viewed American superiority over the Pacific an obstacle. The U.S acted on Japan’s aggression via trade embargo. When Japan conquered Vietnam, the U.S cut 90% oil supply to Japan.  When Japan continued the war in China, U.S cut steel and other vital imports to the country.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.

yes i can of course like what is it gonna be about