By did harry truman represent the united states at the potsdam conference

President Harry S. Truman represented the United States at the Potsdam Conference because he was the president of the US at the time, meaning he is the head of the nation making him the most qualified candidate for representation. Truman became president after serving as vice president under Roosevelt for 82 days until Roosevelt, unfortunately, died of intracerebral hemorrhage, a condition when there is internal bleeding in the brain.