Oliver Stone’s alternative history
Case number one: if Henry Wallace had won the vice presidential nomination in 1944, he would have become president when Roosevelt died in 1945, and we probably would not have bombed Hiroshima and Nagasaki, and could have avoided the cold war as well. […]  A Gallup poll in July 1944 asked likely Democratic voters whom they wanted on the ticket as veep. Sixty-five percent said Wallace, while Truman came in eighth, with just 2 percent. Roosevelt announced that, were he a delegate, he would vote for Wallace. Claude Pepper, a Democratic senator from Florida, tried to nominate Wallace at the convention, but the conservative party bosses, who opposed him, adjourned the proceedings. “Had Pepper made it five more feet [to the microphone] and nominated Wallace,†Stone argues, “Wallace would have become president in 1945 and…there might have been no atomic bombings, no nuclear arms race, and no Cold War.â€
It was all in Roosevelt’s hands, and Roosevelt was being disingenuous the whole way through. He picked Truman (or asceded to the pick of Truman) and Truman it was.
Case number two: even with Truman as president in 1945, it was not a foregone conclusion that the United States would drop the bomb. Generals Eisenhower and MacArthur both opposed it, along with most of the other top generals and admirals—and they were joined by many of the scientists who had developed the bomb. If only President Truman had listened to them…
This all would go against Truman’s nature.
Case number three: if JFK had not been shot in 1963, Stone is convinced he would have pulled US forces out of Vietnam and negotiated an end to the cold war.
Pick the evidence you must and ignore all other evidence.
Case number four: if George W. Bush had listened to his intelligence agencies in 2001, the 9/11 attacks would not have taken place.
And he’s one for four!