Fascist-Communist WWII/Cold War

Taft would be hardcore isolationist and only concerned with US interests in the Western Hemisphere and the Pacific. Hull, Farley, or Dewey would most likely avoid overt American entanglement in European affairs but show benevolent support for TTL British foreign policy platform: committment to the balance of power, official neutrality between the Axis and the Comintern, de facto support of the Axis to contain the Communists most of the time, as long as the Germans and the Italians stay 'reasonable'. In this regard, the British and the Americans would treat Germany, Italy, and their allies not much differently from how the Western world treated pro-Western dictatorships during the Cold War, if in a more restrained way since the democratic powers have no established alliance bonds with the Axis countries. If a fascist-communist WWII occurs, TTL Axis is unlikely to be seen as the aggressor or the most dangerous side, so American attitude would again mirror the British one in a more subdued way. If Britain stays a pro-Axis neutral, America would go along, repeal the neutrality laws, and provide the Axis countries access to US loans and economic resources on favorable terms, but still within the limits of normal trade relations. If the casus belli turns Britain into a pro-Axis belligerant, US Land-Lease to the Anglo-German-Italian coalition is quite likely.

TTL fascist Germany is not especially racist by 1930s standards, so the main prewar reason for American public opinion to regard it with suspicion and antipathy is removed. If US attitudes towards fascist Italy before the Nazis took power are anything to go by, the Americans would regard its German equivalent with benevolence, as long as it doesn't make any overt show of hostility. Only radical liberals and more so far-leftists would be antagonistic for ideological reasons, but conservatives and centrist liberals would be friendly, or at least not caring and thinking of the Commies as a worse threat.

By the way, this also means the 1936 Berlin Olympics are going to take place and be remembered without any major controversy; there may be some issue about the countries being involved in armed conflicts at the time, but the international community is not going to suspend the games for anything less of a general war, and won't move them unless the host country is directly involved in a conflict. Jesse Owens is still going to be a star, but his performance and legacy won't have any special relevance except for the Afro-American community. The same applies to the 1940 Tokyo Olympics, short of Japan being involved in a shooting war with the Soviets at the time, and to the 1944 London Olympics, if *WWII doesn't occur.  

Well, I have not really planned to extend the 'official' TL beyond the major fork between an Axis-Comintern WWII (with the Anglo-Americans being opportunist neutrals or allies of convenience with OTL priorities reversed) and a multipolar Cold War, that occurs in the early-mid 1940s, since I prefer to leave it open to either outcome. But I'm quite open-minded to share 'unofficial' ideas and reasoned insights about what I may regard as high-probability outcomes of the scenario if people make questions or points.