President Roosevelt died
Because president Roosevelt died of cancer. Truman was his vice-President, so constitutionally he then succeeded Roosevelt.
Before. Truman was Roosevelt's VP. When Roosevelt died in 1945, Truman was sworn in as president.
Truman was the vice-president under Franklin Roosevelt for about three months when FDR died and Truman became the President in April of 1945.
U.S. president? That was Truman.
The Democratic Party chose Truman and Roosevelt.
President Roosevelt's vice president, Harry Truman, became President of the United States after Roosevelt's death.
Harry Truman
Harry Truman, the Vice-president., became President at the death of President Roosevelt on April 12.1945.
The President during most of WW II was Franklin Delano Roosevelt. Truman was only President for a brief period during WW II, at the end, after Roosevelt died in office.
Harry Truman
Franklin D. Roosevelt
William Howard Taft was the President of the US after Theodore Roosevelt. The President of the US after Franklin Delano Roosevelt was Harry Truman.