For 10 points, name this president who authorized the use of the atomic bomb on Japan.
In the 1940 election, this politician was supported by Robert Hannegan after former Governor Lloyd Stark challenged him for his seat in the primaries. This president's positive attitude towards Israel was influenced by his former business partner, Eddie Jacobson. Congress overrode this president's veto on legislation that established the Subversive Activities Control Board. This politician, who vetoed the (*) McCarran Act, was known as the "Senator from Pendergast" while in Congress. A Chicago Tribune headline incorrectly claimed that this president was defeated by Thomas Dewey in 1948. For 10 points, name this president who authorized the use of the atomic bomb on Japan.
In the 1940 election, this politician was supported by Robert Hannegan after former Governor Lloyd Stark challenged him for his seat in the primaries.
Harry S. Truman