Final answer:
Primarily, Wilson's position on the League of Nations received the most reliable support from the Democrats in Congress. Republican senators, being more isolationist, generally didn't agree with Wilson's internationalist proposals.
Step-by-step explanation:
In the U.S. Congress, the most reliable support for Wilson's position on the League of Nations came primarily from e) Democrats. It was traditionally his party, the Democrats, who stood by his idealistic vision for a League of Nations, which was aimed at maintaining global peace and order. Republican senators, led by Henry Cabot Lodge, were primarily against Wilson's proposal. This faction, also known as pro-league Republicans and another group known as the irreconcilables, were more isolationist in their foreign policy views and disagreed with Wilson's internationalist approach. Therefore, Democrats provided the main support for Wilson's League of Nations in Congress.
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