What if America's fabulously popular ambassador to Britain, J.G. Winant, had been FDR's VP nominee in 1944?

https://en.wikipedia.org/wiki/John_Gilbert_Winant https://archive.vpr.org/commentary-series/gilbert-john-gilbert-winant/ Like most high profile people who committed suicide, this fact of the end of John G. Winant's life tends to overshadow the other aspects of his life. John Winant was a remarkable individual, particularly for an American politician. While most politicians feign concern for the poor and disadvantaged, Winant actually walked the walk, and didn't just talk the talk. His financial problems largely stemmed from his honesty and generosity. He really did let the poor and disadvantaged stay at his home whenever they needed to. He really did talk to workingmen and share their concerns. He really did relate to the British Left, although an American Republican as a highly successful state politician in New Hampshire. He was known as "Utopian John" to FDR and others, because of his idealism. FDR really did consider him as a potential VP nominee in 1944, so John Winant might have become President of the United States on FDR's death in 1945. Of course, with his background as a Republican, and his reputation for idealism and left-wing sympathies, he had few supporters other than his close friend, FDR himself. Still, he was so popular in Great Britain, and so close to Winston Churchill -- he had a long term affair with Churchill's favorite daughter, actress Sarah Churchill -- that it is conceivable that Winston Churchill himself might have made the case that Winant could be an inestimable advantage on the Democratic ticket, in terms of maintaining strong relationships with Britain, Western Europe, and the world as a whole. And, this might have been sufficient to give Winant the VP nomination. So, what happens when FDR dies, and left-wing idealist John Winant becomes President of the U.S.? I believe, this might change things quite a bit from what happened with down to earth pragmatist Harry Truman, as President. And, most of those changes would be for the better! First of all, I think Winant would be horrified by the Manhattan Project, and the A-bomb. I think President Winant might have been tempted to scrap the program entirely! However, I suspect he would relent, and agree to a demonstration of the A-bomb's power to the Japanese, on an unpopulated area, with the warning that it would be used on Tokyo in substantial numbers if a peace treaty was not agreed to immediately. And, I think this might have done the trick. With no need for any actual military use of the A-bomb at all. Ever. I think this type of cautious but firm discretion -- something that Harry Truman was literally incapable of -- would make a very positive impression on Josef Stalin. Also, Stalin being himself an idealist in his own rather twisted way, would have respected Winant's Utopianism. I could see Winant offering Stalin a kind of a deal -- free and fair elections in Poland in return for an exchange of information regarding the A-bomb. And, I think Stalin might have taken that deal! With no "iron curtain" in Europe, the relations between the U.S. and the U.S.S.R. are much improved. This allows Stalin to loosen the reigns a bit in the U.S.S.R. It's still a dictatorship, but, the Gulag is deemphasized, and there is more individual freedom. Kind of a Khrushchev lightening of the grip, but, toward the end of Stalin's reign. There is no Berlin blockade, no airlift is necessary. In China, this allows for the possibility of a negotiated solution. Chiang Kai Chek is pressured by President Winant to actually allow a free and fair representation of Mao ZeDong's communists in Chinese elections, and Mao's Communists do very well. There is the real possibility of Mao Zedong coming to power democratically, with the support of both the U.S. and the U.S.S.R. Under these circumstances, Mao Zedong, who was nothing if not flexible and adaptable, might indeed remain what he had largely been in opposition in China, something of a social democrat, rather than a communist Emperor. There's no Korean War, of course. Thoughts?