What did the refusal of the united states to join the league of nations indicate?

the rise of isolationism in the congress

desire to change the treaty of versailles

the anti-immigrant feelings that increased after the war

opposition to great britain having control over the league

The rise of isolationism in the Congress

Explanation:

The League of Nations was an organization that was created at the end of WWI to establish peacekeeping.

The US Congress at the time had some powerful isolationism members that opposed to any US involvement in the League and in any international conflicts. The Senate then refused to ratify the treaty and the US did not become a member of the League of Nations.

it was certainly a debatable decision, mainly because it was based primarily on political - and not on legal or social - views. since the congress at that time was led by members of the republican party, and the territory that the tribes wanted to turn into an exclusively indian state was predominantly democratic, the proposal (as expressed in the constitution) did not succeed, but the constitution itself proved to be of crucial importance in the creation of the state of oklahoma, and, most importantly, it guaranteed the involvement of representatives of the indian tribes in the government of the future joint state.  

as a member of congress, i would have voted to ratify the constitution, or at least to have it tabled. ignoring it was an interested and partial decision.