Explain one reason why the United States of America wanted a policy of isolationism after World War 1?

One reason why the USA wanted to adopt a policy of isolationism after World War 1 was the nature of the war it-self. At heart, World War 1 was a European conflict. Some politicians at the time argued that it was not USA's war to fight. That 100 000 American soldiers died fighting for peace which would not affect them. This was equally relevant on an economic scale. The USA , by 1917, had loaned to the Allies a total of $2.27 billion. This along with the horrific nature of the war resulted in the popular opinion that joining the war was a mistake. Consequently, politicians caught on and the desire for isolationism was seen through the election of Warren Harden in 1920, who vowed to return to 'normalcy', which made reference to the isolationist nature the USA had already adopted before intervening in World War 1.